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MAC Protocol based on Resource Status-Sensing Scheme for Integrated Voice/Data Services  

Lim, In-Taek (Dept.of Computer Engineering, Pusan University of Foreign Studies)
Publication Information
Journal of KIISE:Information Networking / v.29, no.2, 2002 , pp. 141-155 More about this Journal
Abstract
A medium access control protocol is proposed for integrated voice and data services in the packet CDMA network with a small coverage. Uplink channels are composed of time slots and multiple spreading codes for each slot. This protocol gives higher access priority to the delay-sensitive voice traffic than to the data traffic. During a talkspurt, voice terminals reserve a spreading code to transmit multiple voice packets. On the other hand, whenever generating a data packet, data terminals transmit a packet based on the status information of spreading codes in the current slot, which is received from base station. In this protocol, voice packet does not come into collision with data packet. Therefore, this protocol can increase the maximum number of voice terminals.
Keywords
MAC protocol; slotted ALOHA; resource status sensing; integrated voice/data service;
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