Return to search

On multiple-antenna communications: signal detection, error exponent and and quality of service

Motivated by the demand of increasing data rate in wireless communication,
multiple-antenna communication is becoming a key technology in the next generation
wireless system. This dissertation considers three different aspects of multipleantenna
communication.
The first part is signal detection in the multiple-input multiple-output (MIMO)
communication. Some low complexity near optimal detectors are designed based on
an improved version of Bell Laboratories Layered Space-Time (BLAST) architecture
detection and an iterative space alternating generalized expectation-maximization
(SAGE) algorithm. The proposed algorithms can almost achieve the performance of
optimal maximum likelihood detection. Signal detections without channel knowledge
(noncoherent) and with co-channel interference are also investigated. Novel solutions
are proposed with near optimal performance.
Secondly, the error exponent of the distributed multiple-antenna communication
(relay) in the windband regime is computed. Optimal power allocation between the
source and relay node, and geometrical relay node placement are investigated based
on the error exponent analysis.
Lastly, the quality of service (QoS) of MIMO/single-input single- output(SISO)
communication is studied. The tradeoff of the end-to-end distortion and transmission
buffer delay is derived. Also, the SNR exponent of the distortion is computed for MIMO communication, which can provide some insights of the interplay among time
diversity, space diversity and the spatial multiplex gain.

Identiferoai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/85827
Date10 October 2008
CreatorsLi, Qiang
ContributorsGeorghiades, Costas N.
PublisherTexas A&M University
Source SetsTexas A and M University
Languageen_US
Detected LanguageEnglish
TypeBook, Thesis, Electronic Dissertation, text
Formatelectronic, born digital

Page generated in 0.0016 seconds