Analysis and simulation of a fair queueing algorithm
SIGCOMM '89 Symposium proceedings on Communications architectures & protocols
Virtual clock: a new traffic control algorithm for packet switching networks
SIGCOMM '90 Proceedings of the ACM symposium on Communications architectures & protocols
CDMA: principles of spread spectrum communication
CDMA: principles of spread spectrum communication
A slotted CDMA protocol with BER scheduling for wireless multimedia networks
IEEE/ACM Transactions on Networking (TON)
Fair scheduling in wireless packet networks
IEEE/ACM Transactions on Networking (TON)
A unified architecture for the design and evaluation of wireless fair queueing algorithms
Wireless Networks - Selected Papers from Mobicom'99
CDMA/HDR: a bandwidth efficient high speed wireless data service for nomadic users
IEEE Communications Magazine
Providing quality of service over a shared wireless link
IEEE Communications Magazine
Hi-index | 0.00 |
In this paper, we address the problem of packet scheduling for high speed CDMA, which can provide high speed data service for mobile users. We first investigate the appropriate multiple access schemes in high speed CDMA. We find through mathematical analysis that TDM is more efficient than CDM for downlink in high speed CDMA networks in some general situations. Based on this finding, we propose and evaluate an efficient scheduling scheme, namely Channel States Dependent Fair Service for CDMA (CSDFSC), for packet scheduling in high speed CDMA networks. CSDFSC tries to maximize channel throughput under fairness and transmission power constraints. This scheme differentiates best-effort and guaranteed services by assigning different queue weights to various traffic classes. By considering the difference between the pre-defined and actually occupied bandwidth proportion in the priority computation, CSDFSC exhibits good fairness properties for best-effort flows. We compare the performance of CSDFSC with that of WISPER and WRR by using ns-2 simulations, where VBR video and TCP traffic flows are considered. The numerical results show that CSDFSC outperforms them in terms of throughput, link utilization and average end-to-end packet delay, while retaining a low implementation complexity.