分碼多工無線區域網路的一個奇妙整合協定分析

Abstract

This paper proposes an integrated protocol for CDMA wireless LANs.Voice and data can be exchanged over the wireless LAN based on this frame-based protocol. Modified from our previously proposed RBHS protocol [2], the protocol can accommodate integrated services on CDMA LANs with quality of service (QoS).This protocol uses a handshake procedure for voice calls first, followed by a reserved period for pure voice transmission. Then the remaining time of the frame is allocated to the data users for transmissions based on ALOHA protocol in nature. The length of data transmission period can be varied according to the number of voice calls initiated, voice packet length and the system threshold. Performance analysis using continuous-time Markov chain models are proposed and numerical results in voice call blocking probability, packet loss rate and network throughput are presented