Orthogonal Frequency Division Multiplexing for Wireless Communications (Signals and Communication Technology)
IEEE Wireless Communications
Efficient optimal and suboptimal radio resource allocation in OFDMA system
IEEE Transactions on Wireless Communications
Optimal Downlink OFDMA Resource Allocation with Linear Complexity to Maximize Ergodic Rates
IEEE Transactions on Wireless Communications
Low complexity subcarrier and power allocation for utility maximization in uplink OFDMA systems
IEEE Transactions on Wireless Communications - Part 1
Adaptive radio resource allocation for downlink OFDMA/SDMA systems with multimedia traffic
IEEE Transactions on Wireless Communications - Part 1
Resource Allocation for Delay Differentiated Traffic in Multiuser OFDM Systems
IEEE Transactions on Wireless Communications
An efficient random access scheme for OFDMA systems with implicit message transmission
IEEE Transactions on Wireless Communications
IEEE Transactions on Wireless Communications
Optimal Carrier Loading Control for the Enhancement of Visual Quality over OFDMA Cellular Networks
IEEE Transactions on Multimedia
Multichannel random access in OFDMA wireless networks
IEEE Journal on Selected Areas in Communications
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Orthogonal frequency division multiple access (OFDMA) is a promising technique for achieving high capacities in future cellular systems to support multimedia traffic. The OFDMA technique not only allows maximum resource utilisation, but also a very flexible channel management. In order to meet the dynamic bandwidth requirement in downlink, an efficient resource allocation method called two stage rate adaptive (TSRA) algorithm is proposed here. The TSRA meets the quality of service (QoS) requirements of the real time services on the expense of non real time traffic while maximising the dynamic capacity of the OFDMA system. We find that for the higher traffic load, the average capacity of the system approaches the theoretical/analytical limit. The delay and bit error rate (BER) of TSRA observed here can support varieties of multimedia services.