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The use of wireless in local loop (WiLL) has generated considerable interest due to the advantages it offers such as ease and low cost of deployment and maintenance. Directional multihop wireless in local loop (DWiLL), a new architecture proposed in this paper, employs a unique combination of directional multihop relaying in the uplink and single hop relaying in the downlink to reuse bandwidth and thus improve the throughput of WiLL systems. Analysis of the call acceptance ratio (CAR) in a DWiLL system is non-trivial as the Erlang B formula no longer holds. In This work we build multi-dimensional Markov chains to analyze the performance of the DWiLL system. We observe that directional multihop relaying leads to a significant improvement in throughput of WiLL systems.
Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. 15th IEEE International Symposium on (Volume:4 )
Date of Conference: 5-8 Sept. 2004