Optimization Subcarrier Allocation and Genetic Algorithm for Resource Allocation in MIMO-OFDMA

Abstract

Resource Allocation is important to wireless communication, it has to allocation of signalling dimension between users in both uplink and downlink channel. In recent years, the user of wireless communication always increase day by day but the available spectrum is very limited. This paper will discussed about adaptive resource in MIMO based on subcarrier allocation (SA) and Genetic Algorithm (GA). The algorithm determines the number of subcarriers for each user and then handing over the subscriber to each user. Based on subcarrier allocation (SA), using SVD (Singular Value Decomposition) transform MIMO fading channel into an equivalent bank of parallel SISO (Single Input Single Output) subchannels. The new algorithm has lower complexity and with simulation can figure higher system capacity. The result showed with the algorithm can reduce the fairness and subcarrier allocation can provide capacity improvement.