An analytical model for reverse data channel scheduling techniques in cdma2000 1xEV-DO

Efficient utilization of bandwidth and high data rates have a great impact on the performance of wireless networks. The cdma2000 1xEV-DO standard provides high-speed wireless data services to mobile subscribers based on CDMA technology. In this paper, we study the bandwidth utilization for the 1xEV-DO packet mode standard. In particular, we develop an analytical model for lowest-rate-first, highest-rate-first priority scheduling techniques, and two round-robin fair scheduling techniques over the reverse data channel in cdma2000 1xEV-DO. For these four scheduling techniques, the distribution of the mobile stations (MSs) among the possible data rates is modeled as a Markov process. An analytical expression for the steady state system throughput is derived from the steady state distribution of the above Markov process. The developed model is validated through simulations. Copyright © 2008 John Wiley & Sons, Ltd.

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