Advances in Cooperative Wireless Networking

ADVANCES IN COOPERATIVE WIRELESS NETWORKING: PART 2

Cooperative Network Coding in Relay-Based IMT-Advanced Systems
Mugen Peng, Changqing Yang, Zhongyuan Zhao, and Wenbo Wang, Beijing University of Posts and Telecommunications Hsiao-Hwa Chen, National Cheng Kung University

ABSTRACT
Cooperative network coding has been proposed as an effective solution to improve system performance. Through collaborative network coding in the intermediate node(s) instead of direct forwarding, the transmission reliability, efficiency, and security can be enhanced significantly. Although extensive research activity on the cooperative network coding has been reported in the literature, most works focused only on their technical analyses, and no effort has been made so far on its applications in IMT-Advanced systems. In this article, we take a first look at possible application scenarios in order to design the needed protocols for cooperative network coding in futuristic wireless communication systems. The architectures of cooperative network coding schemes are presented in this article for their possible applications in two-way, multiple access, and multicast cooperative relays. The key techniques for implementing these three network coded cooperative relay schemes are identified, and their performances are evaluated. At the end of this article, the major challenges in terms of technical standardization that may affect the application of cooperative network coding in the IMT-Advanced systems are discussed as well.
This work was supported in parts by the State Major Science and Technology Special Projects of China (Grant No. 2011ZX03003-002-01), the National Natural Science Foundation of China (Grant No. 61072058), the Fok Ying Tong Education Foundation Application Research Projects of China (Grant No. 122005), and Taiwan National Science Council (Grant No. NSC99-2221E-006-016-MY3).

INTRODUCTION
The basic concept of cooperative communication is to share limited resources to

References: [1] J. N. Laneman, D. N. C. Tse, and G. W. Wornell, ”Cooperative Diversity in Wireless Networks: Efficient Protocols and Outage Behavior,” IEEE Trans. Info. Theory, vol. 50, no. 12, Dec. 2004, pp. 3062–80. [2] M. Peng and W. Wang, ”Technologies and Standards for TD-SCDMA Evolutions to IMT-Advanced,” IEEE Commun. Mag., vol. 47, issue 12, Dec. 2009, pp. 50–58. [3] R1-091632 et al., ”Type 2 Relaying Frame-Work Definition,” 3GPP TSG RAN WG1 Meeting #56bis, Seoul, Korea, 23–27 Mar. 2009. [4] R. Ahlswede et al., ”Network Information Flow,” IEEE Trans. Info. Theory, vol. 46, no. 4, July 2000, pp. 1204–16. [5] S.-Y. R. Li, R. W. Yeung, and N. Cai, “Linear Network Coding,” IEEE Trans. Info. Theory, vol. 49, Feb. 2003, pp. 371–81. [6] R. Koetter and M. Medard, ”An Algebraic Approach to Network Coding,” IEEE/ACM Trans. Net., vol. 11, no. 5, Oct. 2003, pp. 782–95. [7] T. Ho et al., ”A Random Linear Network Coding Approach to Multicast,” IEEE Trans. Info. Theory, vol. 52, no. 10, Oct. 2006, pp. 4413–30. [8] C. Fragouli, J. Widmer, and J.-Y. L. Boudec, ”Efficient Broadcasting Using Network Coding,” IEEE/ACM Trans. Net., vol. 16, no. 2, Apr. 2008, pp. 450–63. [9] R1-082327, ”Application of Network Coding in LTEAdvanced Relay,” 3GPP TSG-RAN WG1 #53b, Warsaw, Poland, June 30–July 4, 2008. [10] S. Zhang, S.-C. Liew, and P. P. Lam, ”On the Synchro- 84 IEEE Communications Magazine • April 2012