Unequal error protection scheme for layered sources transmission over MIMO systems using spatial diversity and multiplexing technology

doi:10.1016/S1005-8885(15)60653-7

中国邮电高校学报(英文) ›› 2015, Vol. 22 ›› Issue (3): 56-63.doi: 10.1016/S1005-8885(15)60653-7

Unequal error protection scheme for layered sources transmission over MIMO systems using spatial diversity and multiplexing technology

Zhang Yongjian(1,2), Zhang Kexin(3), Kang Yanmei(2), Yang Dacheng(1)

1. School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, 2. University of International Relations, 3. Academic office, Beijing University of Posts and Telecommunications,

收稿日期:2014-12-30 修回日期:2015-03-27 出版日期:2015-06-30 发布日期:2015-06-24
通讯作者: Zhang Yongjian, E-mail: zyjbaba@163.com E-mail:zyjbaba@163.com
基金资助:
the state scholarship fund of China Scholarship Council (201207820020), the Fundamental Research Funds for the Central Universities in the University of International Relations (3262014T73), and the Specialized Research Funds of the Team of Prof. L. B. Milstein and Dr. S.H.Chang from the Department of Electrical and Computer Engineering, University of California at San Diego, CA, USA.

Unequal error protection scheme for layered sources transmission over MIMO systems using spatial diversity and multiplexing technology

Zhang Yongjian(1,2), Zhang Kexin(3), Kang Yanmei(2), Yang Dacheng(1)

1. School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, 2. University of International Relations, 3. Academic office, Beijing University of Posts and Telecommunications,

Received:2014-12-30 Revised:2015-03-27 Online:2015-06-30 Published:2015-06-24
Contact: Zhang Yongjian, E-mail: zyjbaba@163.com E-mail:zyjbaba@163.com
Supported by:
the state scholarship fund of China Scholarship Council (201207820020), the Fundamental Research Funds for the Central Universities in the University of International Relations (3262014T73), and the Specialized Research Funds of the Team of Prof. L. B. Milstein and Dr. S.H.Chang from the Department of Electrical and Computer Engineering, University of California at San Diego, CA, USA.

摘要/Abstract

摘要： This paper proposes a hybrid scheme of the Alamouti coding and vertical bell labs layered space-time (V-BLAST) with the zero-forcing (ZF) receiver, which can achieve the unequal error protection (UEP) transmission in terms of the differences of importance in the layered sources. We analyze the tradeoff between spatial diversity and multiplexing in a mathematical manner, and prove the monotonic behavior of the crosspoint. Based on this scheme, we adopt V-BLAST to provide high data rates for the enhancement layer (EL) bitstreams, and adopt Alamouti coding to guarantee high reliability for the base layer (BL) bitstreams. Meanwhile, to improve the transmission reliability for the layered sources under the multiple-input multiple-output (MIMO) system with the limited-bandwidth and the total limited power, and to raise the frequency bandwidth efficiency, we take the power allocation considered in this proposed scheme. The simulation results show that the hybrid scheme has the average 1.9 dB and 1.3 dB gain in video peak signal-to-noise ratio (PSNR), compared with the pure spatial diversity and pure spatial multiplexing scheme, respectively.

关键词: unequal error protection, spatial diversity and multiplexing, outage probability, multiple-input multiple-output (MIMO), power allocation

Abstract: This paper proposes a hybrid scheme of the Alamouti coding and vertical bell labs layered space-time (V-BLAST) with the zero-forcing (ZF) receiver, which can achieve the unequal error protection (UEP) transmission in terms of the differences of importance in the layered sources. We analyze the tradeoff between spatial diversity and multiplexing in a mathematical manner, and prove the monotonic behavior of the crosspoint. Based on this scheme, we adopt V-BLAST to provide high data rates for the enhancement layer (EL) bitstreams, and adopt Alamouti coding to guarantee high reliability for the base layer (BL) bitstreams. Meanwhile, to improve the transmission reliability for the layered sources under the multiple-input multiple-output (MIMO) system with the limited-bandwidth and the total limited power, and to raise the frequency bandwidth efficiency, we take the power allocation considered in this proposed scheme. The simulation results show that the hybrid scheme has the average 1.9 dB and 1.3 dB gain in video peak signal-to-noise ratio (PSNR), compared with the pure spatial diversity and pure spatial multiplexing scheme, respectively.

Key words: unequal error protection, spatial diversity and multiplexing, outage probability, multiple-input multiple-output (MIMO), power allocation

Zhang Yongjian(1,2), Zhang Kexin(3), Kang Yanmei(2), Yang Dacheng(1). Unequal error protection scheme for layered sources transmission over MIMO systems using spatial diversity and multiplexing technology[J]. Acta Metallurgica Sinica(English letters), 2015, 22(3): 56-63.

参考文献

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Unequal error protection scheme for layered sources transmission over MIMO systems using spatial diversity and multiplexing technology

Unequal error protection scheme for layered sources transmission over MIMO systems using spatial diversity and multiplexing technology

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