DocumentCode :
3253436
Title :
An Adaptive MIMO System Based on Unified Belief Propagation Detection
Author :
Xiumei Yang ; Yong Xiong ; Fan Wang
Author_Institution :
Shanghai Res. Center for Wireless Commun., Shanghai
fYear :
2007
fDate :
24-28 June 2007
Firstpage :
4156
Lastpage :
4161
Abstract :
An adaptive multiple input and multiple output (MIMO) system based on the unified belief propagation (BP) detection is proposed. A BP detector composed of a serial of component detectors is first presented. With a unified design of the BP detector, a multi-rate MIMO system adaptive to channel variations is then developed, which aims at achieving the maximal throughput performance. The usage of the unified BP detector eliminates the multiple detector modules at the receiver in conventional multi-mode adaptive MIMO systems. Further, the linear complexity to space time block length and parallel operation of the unified BP detection provide the advantages of low complexity, low detection delay and smooth switching between different data rates. With the average receiving signal-to-noise ratio (SNR) based switching mechanism, the proposed adaptive MIMO framework adaptively chooses the appropriate rate for the transmission. Simulation results are provided to show the BER and complexity performance of a specific BP detector as well as the throughput performance of the adaptive scheme.
Keywords :
MIMO communication; backpropagation; computational complexity; error statistics; BER; adaptive MIMO framework; adaptive MIMO system; backpropagation detectors; complexity performance; multimode adaptive MIMO systems; multiple input and multiple output system; signal-to-noise ratio; unified belief propagation detection; Adaptive systems; Belief propagation; Communications Society; Detectors; Fading; Intersymbol interference; MIMO; OFDM; Throughput; Wireless communication;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, 2007. ICC '07. IEEE International Conference on
Conference_Location :
Glasgow
Print_ISBN :
1-4244-0353-7
Type :
conf
DOI :
10.1109/ICC.2007.685
Filename :
4289356
Link To Document :
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