BER Performance Analysis of V-BLAST MIMO System with Joint Source and Channel Coding

Sari, Lydia; Wibisono, Gunawan; Gunawan, Dadang

doi:10.1109/paciia.2008.33

Cited by 1 publication

(3 citation statements)

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“…It is shown in our previous research on UEP and V-BLAST MIMO that an RCPC-encoded V-BLAST MIMO is capable of achieving consistently better performance in respect to a lowered code rate [9][10]. In these works, however, the modulation used was QAM, which do not allow for accurate separation between the signal and the fading amplitudes.…”

Section: Introductionmentioning

confidence: 99%

“…As a first consequence, the theoretical BER presented therein is an average for an assumed equal transmit power scheme. In [9], the power is assumed to be constant for all transmit antennas, while in [10] it is calculated as a function of channel gains and the number of antennas. The second consequence is that in these works an allocation scheme for different code rates for different sub-channels in the MIMO system are not addressed.…”

Section: Introductionmentioning

confidence: 99%

“…The second consequence is that in these works an allocation scheme for different code rates for different sub-channels in the MIMO system are not addressed. The RCPC codes used in [9][10] are taken from [4], although clearly alternate RCPC codes can be built for different puncturing periods.…”

Section: Introductionmentioning

confidence: 99%

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Design of RCPC Encoded V-BLAST MIMO System

Sari¹,

Wibisono²,

Gunawan³

2009

itbj.ict.

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A Vertical Bell Laboratories Layered Space-Time Multiple-Input Multiple Output (V-BLAST MIMO) enhanced with Unequal Error Protection (UEP) to achieve highly reliable wireless communication is proposed. The UEP scheme is based on Channel State Information (CSI) available at the transmitter whose calculation utilizes Singular Value Decomposition (SVD) of the MIMO matrix channel. Using Rate-Compatible Punctured Convolutional (RCPC), a different code rate is given for each sub-stream of source information, according to its level of transmit power. To analyze the system performance, an analytical BER comprising the performance of V-BLAST MIMO BPSK-modulated signals and the performance of RCPC codes in Rayleigh fading environment is presented. Simulation results show that increasing the code rate can attain a bandwidth efficiency of 33.3% in expense Eb/No, but this penalty is not severe as the high code rate is used in sub-channels with high attenuation level. It is also shown that a system with 2 transmit and 4 receive antennas will have an improved performance within only 1 dB range compared to a system with 2 transmit and 2 receive antennas. The performance of the proposed system is mostly affected by the type of puncturing matrices chosen

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%