verige står inför en bostadsbrist och behöver under detta decennium bygga tiotusentals bostäder årligen. Det är kommunerna som har det huvudsakliga genomförandeansvaret för att säkerställa bostadsförsörjningen i landet. Översiktsplanen och detaljplanen är de vedertagna verktyg kommuner reglerar markanvändningen med. Därutöver förfogar kommuner över markanvisningar, den process som sker när kommunal mark överförs till byggaktörer för byggprojekt. Denna process kan i regel delas upp i två kategorier utifrån hur byggaktörer utses. Dels anbudsanvisningar då förslag jämförs mot varandra, dels direktanvisningar då konkurrensutsättning inte äger rum. Denna studie undersöker hur dessa två förfarandetyper används för att bidra med olika effekter i samband med markanvisningar för bostadsprojekt. Studien undersöker vilka tillkommande drivkrafter och motiveringar som legat bakom tilldelningarna för att bidra till en mer detaljerad bild över den tidiga kommunala planeringen av bostäder. Arbetet bygger på ett blandat metodiskt tillvägagångssätt. Huvudmetoden är en tematisk analys av motiveringar för beslutade markanvisningar från 53 kommuner under 2021. Studien består därtill av en inramande bakgrundsstudie och en fördjupande intervjustudie med fem av kommunerna. Studiens utgångspunkt är att identifiera övergripande trender i hur markanvisningar för bostäder motiveras. Vidare undersöks hur väl motiveringarna svarar mot förväntade effekter av markanvisningar genom ett teoretiskt ramverk om formella och informella processer. Slutligen appliceras ett perspektiv om kommunal styrning för att därmed undersöka motiv och drivkrafter bakom markanvisningarna. Utifrån motiveringarna påvisar studien en trend att anbudsanvisningar i högre grad leder till att projektidéer premieras medan direktanvisningar fokuserar på att identifiera en önskvärd byggaktör. Den fördjupade studien bidrar med kompletterande belägg för att aktörens förmåga kan vara drivande i båda förfarandetyperna. Vidare visar analysen att anbuds- och direktanvisningar svarar för totalt sett i princip lika stora bostadsvolymer, där direktanvisningar står för ett något högre snitt per markanvisning. Följaktligen resoneras att kommuner tenderar att prioritera ett säkerställande av genomförande i syfte att möta sina tillväxtambitioner och bostadspolitiska mål. Andra mervärden såsom hållbarhetsaspekter kan vara en del av, men är överlag inte huvudsaklig drivkraft inom markanvisningsprocesser. Slutligen presenteras ett antal idéer för potentiellt intressanta vidare studier i ämnet. / Sweden is facing a housing shortage, calling for the construction of tens of thousands of additional homes annually during this decade. The municipalities carry the main responsibility to guarantee a satisfactory housing supply. The comprehensive plan and the detailed development plan are the conventional tools by which municipalities regulate land use. In addition, municipalities may utilize land allocations, the process that takes place when municipal land is transferred to housing developers for construction projects. This process can usually be divided into two categories. Tender allocations, where proposals are compared to each other, and direct allocations, where competition does not take place. This study examines how these two variants of land allocations are used to contribute different effects for housing projects. The study examines the additional driving forces and motivations behind the land allocations, seeking to contribute a more detailed picture of the early municipal planning practices regarding housing. The work is based on a mixed methodological approach. The main method is a thematic analysis of motivations for decided land allocations based on a dataset containing land allocation activities from 53 municipalities during 2021. The study also consists of a framing background study and an in-depth interview study with five of the municipalities. The starting point of the study is to describe overall trends based on motivations. Furthermore, the study investigates how well the motivations correspond to the expected effects of land allocations through a theoretical framework on formal and informal process. Finally, a municipal governance perspective is applied to examine the motives and driving forces behind the land allocations. Based on the motivations, the study argues that tender allocations to a greater extent result in project ideas being rewarded. Meanwhile, direct allocations focus on identifying a suitable housing developer. The in-depth study indicates that assurance of the developers’ capability is a leading influence in both allocation variants. Furthermore, the analysis shows that tender allocations and direct allocations account for an essentially equal total of housing volumes, where direct allocations contain a slightly higher average housing per land allocation. Consequently, it is reasoned that municipalities tend to prioritise realisation of housing development in order to meet their growth and housing policy goals. Other complementary values such as sustainability aspects can in turn be part of, but are in general not driving in, the land allocation process. Finally, several ideas are presented for potentially interesting further studies on the subject.

Detta kandidatarbete har till syfte att undersöka hur och varför kommuner väljer en viss typ avmarkanvisningsmetod samt redogöra om det finns några likheter och/eller skillnader i olika kommungrupperstillvägagångssätt. Till skillnad från tidigare studier har detta kandidatarbete inte bara tagit hänsyn till Sverigesstörre kommuner utan också de mindre kommunerna har tagits i beaktning. Genom en modifikation av SKL:skommungruppsindelning har de deltagande kommunerna delats in i kommungrupp ”liten”, ”mellanstor” och”stor”. Genom en enkätundersökning har information samlats in från 24 geografiskt utspridda samt olika storakommuner om hur de hanterar dagens markanvisningsfrågor.I enkätundersökningen påträffades en rad olika varianter av de två samlingsbegrepp för markanvisningsmetoder;anbudsförfarande och direktanvisning. Därför kan en nationell begreppsram för de tvåmarkanvisningsmetoderna vara behövligt för att öka transparensen på marknaden och främja till en tydligaremarkanvisningsprocess.Resultatet visade att anbudsförfarande i regel tillämpas för attraktiva områden samt för projekt av särskildkaraktär. Direktanvisning tillämpas i sin tur för mindre attraktiva områden samt om kommunen inte vill varadelaktig i exploateringsprocessen. Skillnader har påträffats i vilken metod som vanligen används blandkommungrupperna. I kommungrupp ”stor” och ”liten” är anbudsförfarande den mest användamarkanvisningsmetoden. Medan i kommungrupp ”mellanstor” är direktanvisning den dominerande metoden. / The purpose of this bachelor thesis is to investigate how and why municipalities choose a particular type ofland-use method and explain if there are any similarities and/or differences in the different municipal groups´approaches. Unlike previous studies, this bachelor thesis has not only taken Sweden´s larger municipalities intoconsideration, but also the smaller municipalities have been taken into consideration. Through a modificationof SKL´s municipality group division, the participating municipalities have been divided into groups of “small”,“medium and “large”. Through a questionnaire survey we have acquired information from 24 geographicallyscattered municipalities on how they handle land-use issues.In the survey, a number of different alternatives of the two collective concepts of land-based methods werefound: allocation by tender and direct allocation. Therefore, a national conceptual framework for the two landallocation methods could be needed to increase transparency in the market and promote a clearer land-basedprocess.The results showed that allocation by tender are usually applied for attractive areas and for projects of specialnature. Direct allocation is in turn applied for less attractive areas, and for when the municipality does not wantto participate in the development process. Differences have been found in which method is commonly usedamong the different municipalities divided into “small” and “large”. Allocation by tender is the most commonlyland-used method among the municipalities group “small” and “large”. Whilst in the “medium” group, directallocation is the dominant method.

The aim of this thesis is to study the influence that the human resource allocation process carried out at ALLEGION has over the employee satisfaction level of its employees. ALLEGION is an international manufacturing project-oriented company based in Ensenada, Baja California, Mexico, which operates with over 8,500 employees. Up until the development of this thesis, ALLEGION had never contemplated the job satisfaction level of its employees as a result of the human resource allocation process carried out in the company. Some studies have previously paid attention to the impact that best practices in human resource management have in employee performance, however, to our knowledge, it has never been discussed how the allocation of the human resources in a company can influence job satisfaction. For this reason, we believe is pertinent to conduct a study focusing on this topic. This thesis is presented as a case study of ALLEGION which follows a qualitative method and an inductive approach, where we as researchers, explored the influence that the current method followed by the company to allocate its human resources to projects has over the job satisfaction level of its employees. The first section of this thesis is dedicated to discuss the background of our research topic and to examine relevant literature focused in the subjects of human resource allocation and employee satisfaction. As part of this section, we encountered that four factors are consistently mentioned in the literature related to these core topics having an intrinsic relationship among them. We found that these factors were utilised by some scholars in the development of models to optimise the human resource allocation process and also during the measurement of employee satisfaction in different contexts. The four factors are: personal qualifications –referring to skills utilisation and expertise–, personal aspirations –referring to career development and personal growth–, group relationships –referring to personal relationships with co-workers and managers–, and finally, personal motivations –referring to job motivations–. At the end of this section we present a theoretical model that summarises our findings and highlights the correlations of the factors we identified from the literature. The central part of this thesis focuses on our practical method which comprised nine interviews with employees and project managers of ALLEGION. Our interviews were aimed to discover the relationship and influence that the human resource allocation process implemented in the company had over the job satisfaction level in its employees respectively. As part of our findings we discovered that four elements were contributors to such influence and simultaneously were related to the findings obtained during our literature review. Based upon these four factors, we drew our conclusions for the study. As a conclusion of this thesis, we found that the human resource allocation process conducted at ALLEGION holds a significant influence in the job satisfaction of its employees working in projects, and that four distinct factors should be taken into consideration during the process that functional managers carry out when they have to allocate their human resources to a certain project. These factors are: skills utilisation, career development, individual relationships of the employees with their co-workers and managers, and finally, job motivations. We concluded that the extent to which these elements are considered as part of the decision-making involved in the human resource allocation process will bring as a result a positive or negative outcome in terms of employee satisfaction among the projects of the organisation.

The primary goal of the register allocation phase in a compiler is to minimize register spills to memory. Spills, in the form of store and load instructions, affect execution time as the processor must wait for the slower memory system to respond. Deciding which registers to spill can benefit from execution frequency information yet when this information is available it is not fully utilized by modern register allocators. We present a register allocator that fully exploits profiling information to mini- mize the runtime costs of spill instructions. We use the Furthest Next Use heuristic, informed by branch probability information to decide which virtual register to spill when required. We extend this heuristic, which under the right conditions can lead to the minimum number of spills, to the control flow graph by computing Expected Distance to next use. The furthest next use heuristic, when applied to the control flow graph, only par- tially determines the best placement of spill instructions. We present an algorithm for optimizing spill instruction placement in the graph that uses block frequency infor- mation to minimize execution costs. Our algorithm quickly finds the best placements for spill instructions using a novel method for solving placement problems. We evaluate our allocator using both static and dynamic profiling information for the SPEC CINT2000 benchmark and compare it to the LLVM allocator. Targeting the ARMv7 architecture, we find average reductions in numbers of store and load instructions of 36% and 50%, respectively, using static profiling and 52% and 52% using dynamic profiling. We have also seen an overall improvement in benchmark speed. / Graduate

published_or_final_version / abstract / toc / Statistics and Actuarial Science / Doctoral / Doctor of Philosophy

Macrodiversity system is a communication architecture where base stations (BS) act as distributed nodes of a multiple-input multiple-output (MIMO) antennas. It has many promising features that can improve system performance from a network perspective, such as improving the weak signals of users affected by shadow fading, or users at the cell-edge. They also allow multiple users to share the same resource in time and frequency, improving the overall user capacity. Traditionally, evaluating the link quality of resource-sharing users requires instantaneous channel state information (CSI). However, finding compatible users to share resource in macrodiversity systems is a challenging task. For macrodiversity systems, instantaneous CSI could be passed to the backhaul processing unit (BPU) through the network backhaul. This creates a delay in the signal, and makes instantaneous CSI a less accurate reflection of the channel environment at the time. Passing instantaneous CSI of all users also creates a significant amount of network overheads, reducing the overall efficiency of the network. Compared to MIMO systems with co-located antennas, macrodiversity systems cover a larger geographical area and more users. For this reason, the number of user selection combinations can become extremely large, making scheduling decisions in real time an even more challenging task. These problems limit the realisation of the user capacity potential of macrodiversity systems. This thesis presents a low complexity method of resource allocation for up-link macrodiversity systems. In particular, it uses long-term power to estimate the link quality of resource-sharing users. Using long-term power bypasses the issue of channel estimation error introduced by the network delay, and it also reduces the communication overhead on the network backhaul. In this thesis, we use Symbol-Error Rate (SER) as the measure for link quality. Using the method developed by Basnayaka [1], we are able to estimate SER of resource-sharing users using long-term power. Using the SER estimation method, we further proposed a user compatibility check (UCC), which evaluates the compatibility of users sharing the same resource. Users are only considered compatible with each other if all of them meet a pre-defined SER threshold. We attempt to reduce the complexity of user selection by using heuristic solution-finding methods. In our research, we found that greedy algorithms have the least complexity. We propose four low-complexity user selection algorithms based on a greedy algorithm. These algorithms are simulated under different environment parameters. We evaluate the system performance in terms of utilisation and complexity. Utilisation refers to the percentage of allocated users compared to the theoretical user capacity. Complexity refers to the number of SER calculations required to find a resource allocation solution. From the simulation results, we observed that with the proposed user selection algorithms, we can achieve moderately high utilisation with much lower complexity, compared to finding user selections via an exhaustive search method. Out of the proposed user selection algorithms, the Priority Order with Sequential Removal (PO+SR) and the First-Fit (FF) algorithm have the best overall performance, in terms of the trade-off between utilisation performance, and complexity performance. The final choice of the algorithm will depend on the processing power and the system performance requirement of the macrodiversity system.

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Due to introduction of smart phones with data intensive multimedia and interactive applications and exponential growth of wireless devices, there is a shortage for useful radio spectrum. Even though the spectrum has become crowded, many spectrum occupancy measurements indicate that most of the allocated spectrum is underutilised. Hence radically new approaches in terms of allocation of wireless resources are required for better utilization of radio spectrum. This has motivated the concept of opportunistic spectrum sharing or the so-called cognitive radio technology that has great potential to improve spectrum utilization. The cognitive radio technology allows an opportunistic user namely the secondary user to access the spectrum of the licensed user (known as primary user) provided that the secondary transmission does not harmfully affect the primary user. This is possible with the introduction of advanced resource allocation techniques together with the use of wireless relays and spatial diversity techniques. In this thesis, various mathematical optimization techniques have been developed for the efficient use of radio spectrum within the context of spectrum sharing networks. In particular, optimal power allocation techniques and centralised and distributed beamforming techniques have been developed. Initially, an optimization technique for subcarrier and power allocation has been proposed for an Orthogonal Frequency Division Multiple Access (OFDMA) based secondary wireless network in the presence of multiple primary users. The solution is based on integer linear programming with multiple interference leakage and transmission power constraints. In order to enhance the spectrum efficiency further, the work has been extended to allow multiple secondary users to occupy the same frequency band under a multiple-input and multiple-output (MIMO) framework. A sum rate maximization technique based on uplink-downlink duality and dirty paper coding has been developed for the MIMO based OFDMA network. The work has also been extended to handle fading scenarios based on maximization of ergodic capacity. The optimization techniques for MIMO network has been extended to a spectrum sharing network with relays. This has the advantage of extending the coverage of the secondary network and assisting the primary network in return for the use of the primary spectrum. Finally, instead of considering interference mitigation, the recently emerged concept of interference alignment has been used for the resource allocation in spectrum sharing networks. The performances of all these new algorithms have been demonstrated using MATLAB based simulation studies.