Performance Analysis of the Quick Idle State Protocol of CDMA 1xEV-DO Rev. B Systems

In this paper, we study the performance of Quick Idle State Protocol (QISP) introduced in CDMA 1xEV-DO Rev. B standard to enhance the battery life of Access Terminals (ATs) in the idle mode. We develop an analytical model to assess the performance of QISP and use it to compare QISP with Enhanced Idle State Protocol (EISP) of earlier standard. Specifically, we evaluate the average control channel monitoring time of ATs in the idle state as a function of AT page probability and the total number of pages in the control channel cycle. The results from the model indicate a considerable reduction in the awake time of access terminals with QISP within typical ranges of operating parameters. Finally, we offer some insights on the design of QISP within the flexibility offered by the 1xEV-DO Rev. B standard.