A new directional channel borrowing without locking (DCBWL) schemewhich allows each cell to lend its channels to its adjacent cellswithout locking them in nearby co-channel cells is presented.Performance of the new scheme is compared with that of a channelborrowing without locking (CBWL) scheme by computer simulation of a49-cell model of a mobile cellular system. It is shown by simulationresults that the new scheme has much lower call blocking probability ascompared to the CBWL scheme, for both uniform and hot-spot call trafficpatterns
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