A novel group based common-receiver (GBCR) code protocol for CDMA wireless networks with improved throughput-delay performance

A spreading code protocol (GBCR protocol) suitable for CDMA (packet radio) wireless data networks is proposed. The network is coordinated by a central station which maintains a database tracking each user's status. Users are divided into groups, each of which is assigned a "group-based common" code used by a source terminal to consult the central station for a destination status. Analytical results show that the proposed protocol can effectively improve network stability and throughput/delay performance.