Performance of MIMO HARQ under Receiver Complexity Constraints

Toumpakaris, Dimitris; Lee, Jung Won; Matache, A.; Lou, Hui‐Ling

doi:10.1109/glocom.2008.ecp.837

Cited by 15 publications

(9 citation statements)

References 6 publications

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“…Note that in (6)- (11) we have considered no specific ARQ protocol. For the performance analysis of different MIMO-ARQ protocols, the readers are referred to Section V.…”

Section: A On the Definition Of Performance Metricsmentioning

confidence: 99%

“…Utilizing RTD, we have X m = X 1 , ∀m, and the receiver performs MRC of the received signals. In other words, each round of RTD is equivalent to adding L r antennas at the receiver [11], [12], [16], [17]. Therefore, the equivalent channel model at the end of the m-th round, i.e., (1), is rephrased as…”

Section: A Rtd Mimo-arq Protocolmentioning

confidence: 99%

“…The last category of the MIMO-ARQ papers are the ones that have studied the theoretical and practical aspects of the channel at finite SNR. Here, the effect of non-orthogonal space-time block codes (STBCs) [7], Bell-Labs layered spacetime (BLAST) systems [8], bit-interleaved coded modulation [9], quadrature amplitude modulation (QAM) [10]- [12] or using adaptive modulation [13] on the throughput [8], the bit error rate [9]- [11], the packet error rate [7], [12] or the spectral efficiency [13] of the MIMO-ARQ channels have been investigated. Studying the high but finite SNR DMDT of multihop MIMO-ARQ relay networks, low-complexity ARQ techniques in a two-user MIMO broadcast channel, the average rate of MIMO-ARQ schemes utilizing linear dispersion codes (LDCs) and adaptive coding by different STCs have been considered by [14]- [17], respectively.…”

Section: Introductionmentioning

confidence: 99%

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On the Performance of MIMO-ARQ Systems with Channel State Information at the Receiver

Makki

Eriksson

2014

IEEE Trans. Commun.

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This paper investigates the performance of multipleinput-multiple-output (MIMO) systems in the presence of automatic repeat request (ARQ) feedback. We show that, for a large range of performance metrics, the data transmission efficiency of the ARQ schemes is determined by a set of parameters which are scheme-dependent and not metric-dependent. Then, the results are used to study different aspects of MIMO-ARQ such as the effect of nonlinear power amplifiers, large-scale MIMO-ARQ, adaptive power allocation and different data communication models. The results, which are valid for various forward and feedback channel models, show the efficiency of the MIMO-ARQ techniques in different conditions.

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“…Note that in (6)- (11) we have considered no specific ARQ protocol. For the performance analysis of different MIMO-ARQ protocols, the readers are referred to Section V.…”

Section: A On the Definition Of Performance Metricsmentioning

confidence: 99%

Section: A Rtd Mimo-arq Protocolmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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On the Performance of MIMO-ARQ Systems with Channel State Information at the Receiver

Makki

Eriksson

2014

IEEE Trans. Commun.

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“…The receiver of HARQ-IR combines retransmission packets in bit-level. Previous literatures show that the performance of HARQ-IR is better than HARQ-CC, but the communication system of HARQ-IR is much more complicated [9], so HARQ-CC is more widely used in many wireless communication systems.…”

Section: Introductionmentioning

confidence: 99%

“…9 show the BLER performance comparison in 16-QAM modulation (the curves labeled as "HARQ-Chaotic" in Figures 7-13 represent HARQ schemes based on soft joint algorithm). There are three different HARQ schemes inFigure 6, which are (1) HARQ-Chaotic scheme based on HARQ-Chaotic, rate=1/2 HARQ-CC, rate=1/2 HARQ-Chaotic, rate=3/4 HARQ-CC, rate=3/BLER of 3 retransmissions with LDPC coding and 16-QAM modulation in AWGN channels.…”

mentioning

confidence: 99%

HARQ-Chaotic: Analog Chaotic Code Applied in HARQ Scheme of Wireless Communication System

Zhu

et al. 2019

Wireless Communications and Mobile Computing

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This paper proposes a novel symbol-level combining hybrid automatic repeat request (HARQ) scheme based on analog chaotic code and named HARQ-Chaotic. The transmitter of HARQ-Chaotic adopts analog chaotic code to encode Quadrature Amplitude Modulation (QAM) symbols of retransmission packets to combat fading and noise. As the analog chaotic code can only handle sources with amplitudes in the range of [-0.5, 0.5], QAM symbols must be scaled into this range. We derived the optimal scaling factor through theoretical analysis. A joint algorithm combining with novel soft chaotic decoder and novel soft QAM demapper is proposed for the receiver to enhance the performance of the whole communication system. We implemented HARQ-Chaotic with LDPC codes and 16-QAM/64-QAM to carry out simulations in both AWGN channels and multipath fading channels. Massive simulation results demonstrate that the proposed HARQ-Chaotic has 1dB-4dB gain over traditional HARQ-Chase combining (HARQ-CC) scheme in block error rate (BLER) performance.

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