Hardware Prototype for Two-Way Multi-Hop Relay Network with MIMO Network Coding

This paper develops the first prototype hardware for TDD/TDMA two-way multi-hop relay network with MIMO network coding. Since conventional wireless multi-hop relay networks have drawbacks of low data rate, TDD/TDMA two-way multi-hop relay networks have been studied as a solution to realize high data rate recently. In these networks, forward and backward streams are spatially multiplexed by using interference cancellation technology such as MIMO beamforming or MIMO network coding. In this prototype hardware, MIMO network coding and network synchronization scheme are implemented to realize such TDD/TDMA two-way multi-hop relay network in real environment. In the demonstrator using the prototype hardware, each transmitter and each receiver performs network coded broadcast (BC) and MIMO multiple access (MA) respectively. Performance of the demonstrator shows that the TDD/TDMA two-way multi-hop relay network with MIMO network coding can be realized.

[1]  Sakaguchi Kei,et al.  MIMO-OFDM Two-way Multihop Network and Network Synchronization Scheme , 2009 .

[2]  Anurag Kumar,et al.  Network coding for TCP throughput enhancement over a multi-hop wireless network , 2008, 2008 3rd International Conference on Communication Systems Software and Middleware and Workshops (COMSWARE '08).

[3]  Ian F. Akyildiz,et al.  A survey on wireless mesh networks , 2005, IEEE Communications Magazine.

[4]  Rudolf Ahlswede,et al.  Network information flow , 2000, IEEE Trans. Inf. Theory.

[5]  Kei Sakaguchi,et al.  MIMO Spatial Spectrum Sharing for High Efficiency Mesh Network , 2008, IEICE Trans. Commun..

[6]  Ono Fumie,et al.  Cognitive MIMO Mesh Relay Node at 950MHz Band , 2008 .

[7]  Kei Sakaguchi,et al.  STBC MIMO Network Coding for Bi-directional Multi-Hop Relay Networks , 2009, IEICE Trans. Commun..

[8]  Muriel Médard,et al.  XORs in the Air: Practical Wireless Network Coding , 2006, IEEE/ACM Transactions on Networking.

[9]  Petar Popovski,et al.  Bi-directional Amplification of Throughput in a Wireless Multi-Hop Network , 2006, 2006 IEEE 63rd Vehicular Technology Conference.

[10]  H. Arslan,et al.  Initial Ranging for WiMAX (802.16e) OFDMA , 2006, MILCOM 2006 - 2006 IEEE Military Communications conference.