Eecient Pcs Call Setup Protocols

Increasing demand for wireless mobile communications, coupled with limited network resources, has motivated investigation into alternative e cient mobility management solutions. In this paper, we consider wireless PCS call setup protocols. We propose a Lightweight Location Lookup Protocol, which signi cantly reduces the network signaling and setup delay during call setup. As an alternative, we extend the Reverse Virtual Call Setup technique of [6] and propose a Reverse Connection Setup protocol that also performs e cient call setup, while minimizing the cost of failed call attempts. The two new protocols have di erent advantages, in particular when combined with location management techniques including HLR/VLR, HLR/VLR with partial replication, and HLR/VLR with caching. We study combinations of call setup protocols with location management techniques and compare their performance. Both analytical and simulation results are presented. [Key Words] Location Management Technique, Call Setup Protocol. [Technique Areas] Personal Communications Services, Wireless Network Protocols, Mobile Communications Managements. 1Corresponding author. Gates 444, Stanford, CA 94305. Tel: 415/723-9429. [email protected]. 2Tel: 415/725-6563. Fax: 415/723-9251. [email protected]. Tel: 415/723-7690. Fax: 415/725-2588. [email protected]. Tel: 415/723-5443. Fax: 415/725-7126. [email protected]. Research partially supported by the National Science Foundation under grant#NCR-9628184 and by Paci c Bell Corporation.