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Inf. Theory, 46(4), 1204–1216. , Gourdin, E. & Lefebvre,T. 2014. Does network coding improve the throughput of a survivable multicast network? 10th International Conference on the Design of Reliable Communication Networks (DRCN), 1–8. 11. 2007. Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications. IEEE. , Medard, M. & Crowcroft, J. 2008. Xors in the air: practical wireless network coding. IEEE/ACM Transaction on Networking, 16(3), 497–510. , Noguchi, T. & Takine, T. 2011.

To choose M users from K active users, we consider two ways. , Yang J. & Yao J. 2009. Distributed scheduling algorithm for multiuser MIMO downlink with adaptive feedback. Journal of Communications 4(3): 164–169. , et al. 2004. An overview of MIMO communications-A key to gigabit wireless. In Proc. of IEEE 92(2): 198–218. Rajanan A. & Jindal N. 2012. Multiuser diversity in downlink channels : when does the feedback cost outweigh the spectral efficiency gain? In IEEE Trans on Wirelees Comm. 11(1): 408–418.

T. & Kwon, H. 2013. The relationship between healthcare information system and cost in hospital. Personal and Ubiquitous Computing 17(7): 1395–1400. Chan, Y. , Liang, H. J. H. 2014. indd 12 15/05/15 6:10 PM Electronics, Communications and Networks IV – Hussain & Ivanovic (eds) © 2015 Taylor & Francis Group, London, ISBN: 978-1-138-02830-2 A multicast transmission scheme based on block acknowledgment with network coding in wireless LANs Chun-Xiang Chen*, Yuto Izumi & Jianfei Ai Department of Management and Information Systems, Prefectural University of Hiroshima, Hiroshima, Japan ABSTRACT: In this paper, we apply the network coding (NC) technology to multicast transmission in wireless LANs and propose a retransmission scheme to recover packets from transmission error.

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