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Issue No.03 - March (2013 vol.12)
pp: 596-608
Yin Wang , Coll. of Comput. & Inf. Sci., Northeastern Univ., Boston, MA, USA
G. Noubir , Coll. of Comput. & Inf. Sci., Northeastern Univ., Boston, MA, USA
ABSTRACT
In this paper, we propose a new Distributed Cooperation and Diversity Combining framework. Our focus is on heterogeneous networks with devices equipped with two types of radio frequency (RF) interfaces: short-range high-rate interface (e.g., IEEE802.11), and a long-range low-rate interface (e.g., cellular) communicating over urban Rayleigh fading channels. Within this framework, we propose and evaluate a set of distributed cooperation techniques operating at different hierarchical levels with resource constraints such as short-range RF bandwidth. We propose a Priority Maximum-Ratio Combining (PMRC) technique, and a Post Soft-Demodulation Combining (PSDC) technique. We show that the proposed techniques achieve significant improvements on Signal to Noise Ratio (SNR), Bit Error Rate (BER) and throughput through analysis, simulation, and experimentation on our software radio testbed. Our results also indicate that, under several communication scenarios, PMRC and PSDC can improve the throughput performance by over an order of magnitude.
INDEX TERMS
wireless LAN, error statistics, IEEE standards, radio access networks, Rayleigh channels, software radio testbed, distributed cooperation, hybrid wireless networks, diversity combining framework, heterogeneous networks, radio frequency interfaces, short-range high-rate interface, IEEE 802.11, long-range low-rate interface, urban Rayleigh fading channels, short-range RF bandwidth, priority maximum-ratio combining technique, PMRC technique, post soft-demodulation combining, PSDC technique, bit error rate, BER, Diversity reception, Signal to noise ratio, Bandwidth, Mobile communication, Base stations, Fading, Protocols, hybrid wireless networks, Diversity, cooperation
CITATION
Yin Wang, G. Noubir, "Distributed Cooperation and Diversity for Hybrid Wireless Networks", IEEE Transactions on Mobile Computing, vol.12, no. 3, pp. 596-608, March 2013, doi:10.1109/TMC.2012.38
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