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对协作系统自适应角色选择策略的思考

Adaptive Role Selection for Cooperative Communication
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摘要 在传统协作系统基础上提出了一种新颖的自适应协作方式——机会角色选择协作。为进一步说明该策略,构建了一种最基本的两用户机会协作框架,其中两个用户相互竞争将各自信息发送给同一目的端。根据瞬时信道条件,两用户均可以机会地充当信息源角色,而另一用户将作为放大转发中继来为信源服务。同时,在此基础上提出并简要描述了一种最优的中心化角色选择策略(C-ROSE)。该策略能够最大化目的端接收信噪比(SNR),进而提高系统传输性能。研究表明,通过这种动态、灵活、高效的节点角色分配方式,协作系统的传输可靠性可得到进一步增强,从而为构建稳固、高效、互惠的协作传输体系开辟了新道路。 This paper describes an adaptive cooperative technique and opportunistic role-selection scheme based on a traditional cooperative scheme. We create an opportunistic cooperative framework where two users compete to transmit their own information to a common destination. Depending on the instantaneous channel conditions, either of the users can be the information source and the other user is an amplify-and-forward relay. To reduce the likelihood of system outages, an optimal centralized role selection scheme called C-ROSE is proposed. This scheme maximizes the received signal-to-noise ratio at the destination. Our dynamic, flexible role-selection scheme can ameliorate transmission reliability in order to create an effective cooperative communication system.
出处 《中兴通讯技术》 2013年第4期46-48,共3页 ZTE Technology Journal
基金 国家重点实验室开放课题(ISN12-14)
关键词 协作通信 中断概率 角色选择 cooperative communications outage probability role selection
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参考文献15

  • 1BLETSAS A, KHISTI A, REED D P,et al. A Simple Cooperative Diversity Method Based on Network Path Selection[J]. IEEE Journal on Selected Areas in Communications, 2006, 24 (3): 659-672.
  • 2BLETSAS A, SHIN H, WIN M Z. Cooperative Communications with Outage-Optimal Opportunistic Relaying[J]. IEEE Transactions on Wireless Communications,2007, 6(9): 3450-3460.
  • 3ZHANG X, WANG W, JI X. Multiuser Diversity in Multiuser Two-Hop Cooperative Relay wireless Networks: System Model and Performance Analysis[J]. IEEE Transactions on Vehicular Technology,2009, 58(2): 1031-1036.
  • 4CHEN S, WANG W, ZHANG X. Performance Analysis of Multiuser Diversity in Cooperative Multi-Relay Networks Under Rayleigh-Fading Channels[J].IEEE Transactions on Wireless Communications, 2009, 8(7): 3415-3419.
  • 5SUN L, ZHANG T, LU L,et al. On the combination of cooperative diversity and multiuser diversity in multi-source multi-relay wireless networks[J]. IEEE Signal Processing Letters, 2010, 17(6): 535-538.
  • 6DING H, GE J, DA COSTA D B,et al. A New Efficient Low-Complexity Scheme for Multi-Source Multi-Relay Cooperative Networks[J]. IEEE Transactions on Vehicular Technology, 2011,60(2): 716-722.
  • 7YANG N, ELKASHLAN M, YUAN J. Impact of Opportunistic Scheduling on Cooperative Dual-Hop Relay Networks[J]. IEEE Transactions on Communications, 2011, 59 (3): 689-694.
  • 8YANG N, ELKASHLAN M, YUAN J. Outage Probability of Multiuser Relay Networks in Nakagami-m Fading Channels[J]. IEEE Transactions on Vehicular Technology, 2010, 59(5): 2120-2132.
  • 9DING H:GE J,DA COSTA D B, et al. Spectrally Efficient Diversity Exploitation Schemes for Downlink Cooperative Cellular Networks.[J] IEEE Transactions on Vehicular Technology, 2012, 61 (1): 386-393.
  • 10KIM J, MICHALOPOULOS D S. SCHOBER R. Diversity Analysis of Multiuser Multi-Relay Networks[J]. IEEE Transactions on Wireless Communications, 2011, 10(7): 2380-2389.

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