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CBWL: a new channel assignment and sharing method for cellular communication systems

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2 Author(s)
Jiang, H. ; Dept. of Electr. Eng., State Univ. of New York, Stony Brook, NY, USA ; Rappaport Stephen, S.

A new scheme that allows cell gateways (base stations) to borrow channels from adjacent gateways in a cellular communication system is presented. Borrowed channels are used with reduced transmitted power to limit interference with cochannel cells. No channel locking is needed. The scheme, which can be used with various multiple access techniques, permits simple channel control management without requiring global information about channel usage throughout the system. It provides enhanced traffic performance in homogeneous environments and also can be used to relieve spatially localized traffic overloads (tele-traffic `hot spots'). Co-channel interference analysis shows that the scheme can maintain the same SIR as nonborrowing schemes. Analytical models using multidimensional birth-death processes and decomposition methods are devised to characterize performance. The results which are also validated by simulation indicate that significantly increased traffic capacity can be achieved in comparison with nonborrowing schemes

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Vehicular Technology, IEEE Transactions on  (Volume:43 ,  Issue: 2 )