The topic of the current thesis is the reduction of the average packet delay in two-hop wireless cooperative networks with buffer-aided relays. This type of networks is of particular interest since it constitutes the building block for extended networks with multiple hops and numerous relays. Back-pressure-like algorithms are developed for the HRS and max − link relay selection schemes. First, an algorithm is developed and applied for both the HRS and the max − link protocols. It reduces the average delay considerably, but, in the case of the max − link the diversity of the system is reduced resulting in higher outage probabilities. For this reason, a new algorithm is developed that aims at maintaining a high diversity throughout the operation of the network. Distributed implementations of the algorithms are also discussed. The performance of the proposed algorithms is illustrated via simulations.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:kth-167794 |
| Date | January 2015 |
| Creators | Poulimeneas, Dimitrios |
| Publisher | KTH, Reglerteknik |
| Source Sets | DiVA Archive at Upsalla University |
| Language | English |
| Detected Language | English |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
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