Paper Info
Title
Performance Assessment of MIMO-BICM Demodulators based on System Capacity
Abstract
In this paper we provide a comprehensive performance assessment and comparison of various soft- output and hard-output demodulation schemes for multiple-input multiple-output (MIMO) bit-interleaved coded modulation (BICM). Even though widely used in literature for demodulator comparison, coded bit error rate (BER) has the drawback of being strongly dependent on the outer error correcting code. This motivates us to propose a code-independent performance measure in terms of system capacity, i.e., mutual information of the equivalent modulation channel that comprises modulator, wireless channel, and demodulator. We present extensive numerical results for ergodic and quasi-static channels as well as for the case of imperfect channel state information. These results reveal that the performance ranking of MIMO demodulators is rate-dependent. Furthermore, they provide new insights regarding MIMO-BICM system design, specifically the joint selection of demodulation scheme, antenna configuration, and symbol constellation for a prescribed target rate.
Year
Venue
Keywords
2009
Clinical Orthopaedics and Related Research
channel state information,error correction code,mutual information,system design,bit error rate,information theory
Field
DocType
Volume
Demodulation,Mathematical optimization,Wireless,Telecommunications,Computer science,MIMO,Communication channel,Error detection and correction,Modulation,Electronic engineering,Mutual information,Bit error rate
Journal
abs/0903.2
Citations 
PageRank 
References 
4
0.53
33
Authors
3
Name
Order
Citations
PageRank
Peter Fertl114515.04
Joakim Jalden224321.59
Gerald Matz396687.40