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首页> 外文期刊>IEEE Transactions on Consumer Electronics >A MAC protocol for integrated voice/data services in the local wireless CDMA communication networks
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A MAC protocol for integrated voice/data services in the local wireless CDMA communication networks

机译：在本地无线CDMA通信网络中用于集成语音/数据服务的MAC协议

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摘要

A medium access control protocol is proposed for the integrated voice and data services in the local wireless networks, and the performance of the proposed protocol is analyzed. Uplink channels for the proposed protocol are composed of time slots with multiple spreading codes per slot based on WB-TD/CDMA. The proposed protocol uses spreading code sensing and reservation schemes. This protocol gives a higher priority to the delay-sensitive voice traffic than to the data traffic. When a talkspurt begins, the voice terminal reserves an available spreading code to transmit multiple voice packets. On the other hand, whenever a data packet is generated, the data terminal transmits the packet over one of the available spreading codes that are not used by the voice terminals. In this protocol, the voice packets do not come into collision with the data packets. The numerical results show that this protocol can increase the system capacity for voice service by applying the reservation scheme. The performance for the data traffic will decrease in the case of the high voice traffic load because of its low access priority. But it shows that the data traffic performance can be increased in proportion to the number of spreading codes.
机译：针对本地无线网络中的语音和数据综合业务提出了一种媒体访问控制协议，并对该协议的性能进行了分析。所提议协议的上行链路信道由基于WB-TD / CDMA的时隙组成，每个时隙具有多个扩展码。所提出的协议使用扩展码感测和保留方案。该协议为延迟敏感的语音流量提供比数据流量更高的优先级。当通话开始时，语音终端会保留可用的扩展码以传输多个语音数据包。另一方面，每当生成数据分组时，数据终端就通过语音终端未使用的可用扩频码之一发送该分组。在该协议中，语音分组不会与数据分组发生冲突。数值结果表明，该协议通过应用预留方案可以提高语音业务的系统容量。在高语音流量负载的情况下，由于其较低的访问优先级，数据流量的性能将降低。但是它表明，可以根据扩展码的数量来提高数据流量性能。

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