Efficient Resource Allocation in MC-CDMA Cellular Wireless Networks to Support Multimedia Traffic

The Multi Carrier Code Division Multiple Access (MC-CDMA) system with time division duplex mode, adopting unbalanced slot allocation between uplink and downlink, is a good solution for asymmetric multimedia traffic. A centralized common slot allocation to minimize inter-cell interference is not feasible as neighboring cells may carry different rates of traffic load. In this paper, the authors investigate and discuss the effect of asymmetric slot management strategy employing adaptive resource allocation in a MC-CDMA system, in which each cell has its own slot allocation policy according to the level of traffic load.