Differential distributed space-time modulation for cooperative networks.

In this paper, we develop a protocol for the construction of cooperative networks when the channel state information is not available at the transmitters and the receivers. In the proposed protocol, differential space-time codewords are generated at the source terminal. In the broadcast phase, each row of the differential space-time codeword is transmitted to a different relay, whereas in the relay phase, the relaying terminals retransmit the codeword through simple amplify-andforward algorithm. The performance of the cooperative diversity system is analyzed for a two-user case for different channel environments in terms of the diversity gain and the diversity product. The optimization of the power allocation between source and relay terminals is considered for the maximization of the diversity product. When the same modulation scheme is used, the performance of differential detection is degraded by 3 dB noise enhancement compared with coherent detection.

Main Author: Wang, Genyuan.
Other Authors: Zhang, Yimin., Amin, Moeness.
Language: English
Published: 2006
Online Access: http://ezproxy.villanova.edu/login?url=https://digital.library.villanova.edu/Item/vudl:173255
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dc_source_str_mv IEEE Transactions on Wireless Communications, vol. 5, no. 11, pp. 3097-3108, November 2006.
author Wang, Genyuan.
author_facet_str_mv Wang, Genyuan.
Zhang, Yimin.
Amin, Moeness.
author_or_contributor_facet_str_mv Wang, Genyuan.
Zhang, Yimin.
Amin, Moeness.
author_s Wang, Genyuan.
spellingShingle Wang, Genyuan.
Differential distributed space-time modulation for cooperative networks.
author-letter Wang, Genyuan.
author_sort_str Wang, Genyuan.
author2 Zhang, Yimin.
Amin, Moeness.
author2Str Zhang, Yimin.
Amin, Moeness.
dc_title_str Differential distributed space-time modulation for cooperative networks.
title Differential distributed space-time modulation for cooperative networks.
title_short Differential distributed space-time modulation for cooperative networks.
title_full Differential distributed space-time modulation for cooperative networks.
title_fullStr Differential distributed space-time modulation for cooperative networks.
title_full_unstemmed Differential distributed space-time modulation for cooperative networks.
collection_title_sort_str differential distributed space-time modulation for cooperative networks.
title_sort differential distributed space-time modulation for cooperative networks.
description In this paper, we develop a protocol for the construction of cooperative networks when the channel state information is not available at the transmitters and the receivers. In the proposed protocol, differential space-time codewords are generated at the source terminal. In the broadcast phase, each row of the differential space-time codeword is transmitted to a different relay, whereas in the relay phase, the relaying terminals retransmit the codeword through simple amplify-andforward algorithm. The performance of the cooperative diversity system is analyzed for a two-user case for different channel environments in terms of the diversity gain and the diversity product. The optimization of the power allocation between source and relay terminals is considered for the maximization of the diversity product. When the same modulation scheme is used, the performance of differential detection is degraded by 3 dB noise enhancement compared with coherent detection.
publishDate 2006
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fgs.label Differential distributed space-time modulation for cooperative networks.
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dc.title Differential distributed space-time modulation for cooperative networks.
dc.creator Wang, Genyuan.
Zhang, Yimin.
Amin, Moeness.
dc.description In this paper, we develop a protocol for the construction of cooperative networks when the channel state information is not available at the transmitters and the receivers. In the proposed protocol, differential space-time codewords are generated at the source terminal. In the broadcast phase, each row of the differential space-time codeword is transmitted to a different relay, whereas in the relay phase, the relaying terminals retransmit the codeword through simple amplify-andforward algorithm. The performance of the cooperative diversity system is analyzed for a two-user case for different channel environments in terms of the diversity gain and the diversity product. The optimization of the power allocation between source and relay terminals is considered for the maximization of the diversity product. When the same modulation scheme is used, the performance of differential detection is degraded by 3 dB noise enhancement compared with coherent detection.
dc.date 2006
dc.identifier vudl:173255
dc.source IEEE Transactions on Wireless Communications, vol. 5, no. 11, pp. 3097-3108, November 2006.
dc.language en
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