Implementation of Full-Diversity Distributed STBC in Cluster-Based Cooperative Communication

Das, Suman; Ghosh, Monisha

doi:10.1109/vetecs.2008.257

Cited by 9 publications

(12 citation statements)

References 12 publications

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“…Full-diversity DSTBC [6]: modified DSTBC considering possible information exchange errors. The proposed scheme: modified distributed HMTs considering possible information exchange errors, double data rate compared to [6].…”

Section: Simulation Resultsmentioning

confidence: 99%

“…The proposed scheme: modified distributed HMTs considering possible information exchange errors, double data rate compared to [6]. The first two schemes use two transmitting antennas (two users) and the proposed scheme use three transmitting antennas (three users).…”

Section: Simulation Resultsmentioning

confidence: 99%

“…However, the information exchange between users is assumed no errors at all times. In [6], since the decoding at the partners in the cooperative communication systems may be incorrect, the modified Distributed Space Time Block Code (DSTBC) is proposed to maintain full diversity in the presence of information exchange errors. The orthogonal STBC for two transmitting antennas, Alamouti or G2 code [7], is used for modification.…”

Section: Introductionmentioning

confidence: 99%

“…The modified DSTBC in [6] may not have the data rate sufficient for some applications, so we think of the Hybrid MIMO Transceiver Schemes (HMTs) in [8], which has higher data rate than STBC due to the mixture of STBC (coded part) and spatial multiplexing (un-coded part). We modify the HMTs matrix such that the HMTs maintain the diversity in the presence of information exchange errors.…”

Section: Introductionmentioning

confidence: 99%

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Distributed HMT when all information exchanges are wrong

Tseng

Shih

2011

2011 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC)

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The modified Distributed Space Time Block Code (DSTBC) was proposed to consider possible information exchange errors. In this paper, we add one more transmitting antenna and propose the modified Hybrid MIMO Transceiver Schemes (HMTs) to maintain diversity even if all information exchange are in errors. The data rate of the proposed modified HMTs is doubled as compared to the previous modified DSTBC scheme, at the cost of some BER performance loss. The proposed modified HMTs also have lower error probability than the original DSTBC in the medium-to-high SNR range, because the original DSTBC loses diversity due to information exchange errors. Index Terms -DSTBC, Hybrid MIMOI.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Simulation Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Distributed HMT when all information exchanges are wrong

Tseng

Shih

2011

2011 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC)

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“…When considering practical applications of cooperative communication, the theoretical assumptions of "perfect partner decoding" need to be reconsidered [5] and schemes that allow partial decoding of the partners information need to be studied as well. This would lead to more flexible implementations of cooperative communications.…”

Section: Introductionmentioning

confidence: 99%

Partial decode-forward transmission and channel estimation methods for cooperative communications

Das¹

2011

2011 Annual IEEE India Conference

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In this paper, we propose a new transmission scheme for relay-based cooperative communication. The proposed partial decode and forward method renders better bit error rate performance at reduced complexity and lower power consumption at the receiver. Unlike conventional decode-forward and amplify-forward schemes, the relay generates soft-value estimates of the received symbols and retransmits the estimated soft value symbols to the final destination. In accordance with the partial decode and forward scheme, a novel channel estimation technique is also introduced here. A simple redesign of the preamble sequence at the relay enables the destination to concurrently estimate the product of the channel state information between source & relay, and relay & destination. Extensive numerical analyses and simulations show that the proposed scheme attains considerable performance gains against the conventional decode-forward and amplify-forward schemes, which proves to be a good trade-off.

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Distributed space‐time block codes with embedded adaptive AAF/DAF elements and opportunistic listening for multihop power line communication networks

Tseng

Lee

et al. 2015

Int J Communication

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SUMMARYWe consider the multihop power line communication (PLC) networks of one source, two repeaters, and one destination. In the previous scheme, when the repeaters receive the retransmission data from the source, they use the traditional distributed space-time block code (DSTBC) with all decode-and-forward (DAF) elements to transmit the data, and they do not consider the incorrect decoding. The original contribution is that we propose a novel DSTBC scheme with embedded adaptive DAF/amplify-and-forward (AAF) elements for data retransmission in multihop PLC networks with existing opportunistic listening (OL) protocols. The new scheme has two types (instead of only one type as in the previous scheme), and, in the second type, the coding matrix for data retransmission can use either all DAF elements or hybrid AAF/DAF elements depending on the correctness of OL results. The advantage is to avoid a loss of diversity because of incorrectly received data at the relays. The effectiveness of the proposed scheme is shown in the simulation results. For the impulsive noise parameter δ = 0.8 and worst case background noise (narrowband interference and colored noise) at bit error rate 10 À3 , our proposed system has 1 dB gain over the previous scheme with the traditional DSTBC with all DAF elements.

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Implementation of Full-Diversity Distributed STBC in Cluster-Based Cooperative Communication

Cited by 9 publications

References 12 publications

Distributed HMT when all information exchanges are wrong

Distributed HMT when all information exchanges are wrong

Partial decode-forward transmission and channel estimation methods for cooperative communications

Distributed space‐time block codes with embedded adaptive AAF/DAF elements and opportunistic listening for multihop power line communication networks

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