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DYNAMIC REUSE PARTITIONING AND SUBCHANNEL ALLOCATION SCHEME IN MULTICELL OFDMA DOWNLINK SYSTEMS
DYNAMIC REUSE PARTITIONING AND SUBCHANNEL ALLOCATION SCHEME IN MULTICELL OFDMA DOWNLINK SYSTEMS
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机译:多单元OFDMA下行链路系统中的动态重用分区和子信道分配方案
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摘要
The reuse partitioning problem for a cellular orthogonal frequency division multiple access (OFDMA) system with dynamic subcarrier allocation is considered. One objective is to allocate the network resources in an efficient way in order to maximize the system's total throughput under individual user's guality-of-service (QoS) constraint. A suboptimal two-step approach is used where the radio network controller (RNC) solves the network planning problem and each base station (BS) solves the cell throughput maximization problem. Compared with the optimal resource allocation scheme, the approach described herein has much lower computational complexity in the RNC. Moreover, the communication overhead between each BS and the RNC is reduced substantially which renders our approach more practical for delay sensitive applications.
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