Optimal timeslot and channel allocation considering fairness for multicell CDMA/TDD systems
Computers and Operations Research
Downlink traffic control for multiple classes of services in MC-CDMA cellular systems
Mobile Networks and Applications
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Analysis of multiservice cellular networks with asymmetrical traffic and handoff queue
Computer Communications
An efficient local predictive method for distributed timeslot allocation in CDMA/TDD
IEEE Transactions on Wireless Communications
Comparison of decentralized time slot allocation strategies for asymmetric traffic in TDD systems
IEEE Transactions on Wireless Communications
A new hybrid division duplex scheme: orthogonal frequency division duplex (OFDD)
MILCOM'09 Proceedings of the 28th IEEE conference on Military communications
Performance Comparison of Time Slot Allocation Schemes in TDD-CDMA Multihop Cellular Networks
Wireless Personal Communications: An International Journal
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This paper proposes a code division multiple access (CDMA) time division duplex (TDD) system for wireless multimedia services with traffic unbalance between uplink and downlink. In the proposed system, the number of uplink time slots in a TDD frame differs from that of downlink. Moreover, the difference can be reset by the network operator according to the traffic pattern. We evaluate the performance of the proposed system under multimedia environment using Markov analysis and computer simulation. The results show that the frequency utilization is maximized even when the uplink and downlink traffic volumes are unbalanced. This, in turn, reduces drastically the blocking rate of multimedia calls (connections) in the proposed system compared with that in the traditional CDMA systems where the uplink and downlink use equal bandwidth