Wireless access to the World Wide Web in an integrated CDMA system

In this paper we propose a wireless access mechanism for web traffic packets in an integrated wireless CDMA system, that has both voice and web traffic. It consists of a two level control: admission control and flow control. The admission control restricts the number of users in the system such that QoS requirements (target signal to interference ratio, and delay) for both voice and web traffic can be met. The flow control balances the system interference on a slot by slot basis such that the target signal to interference ratios (SIRs) can be achieved for all users (voice and web browsing sessions) with a higher scheduling priority for voice. Designing admission control for web users based on the average offered rate per session is difficult due to the high variations in the offered load generated by heavy tailed distributions for web traffic. To overcome this problem, we propose an admission control algorithm that adaptively estimates the aggregate average load based on load measurements using a sliding observation window. Parts of this paper were presented at ICME’00 and VTC’00 fall. This work is supported in part by the NSF under Grant No. NCR 97-06036 and through the NSF-KDI program under grant number IIS-98-72995, and by Telcordia