摘要:
個人通信和移動計算的發(fā)展促進了將綜合業(yè)務引入移動通信中.CDMA系統(tǒng)是適合于傳輸綜合業(yè)務的系統(tǒng).本文首先給出了一種業(yè)務接入控制算法,并在此算法下,對綜合業(yè)務的CDMA系統(tǒng)的容量做一簡要分析,為滿足不同業(yè)務的QoS(Quality of Service)要求,對于不同的業(yè)務在傳輸時給予不同的功率.為克服速率較高的業(yè)務需要較大功率的問題,對速率較高的業(yè)務給予較寬的傳輸帶寬.不同的業(yè)務在同一頻段中傳輸.最后,依據(jù)CODIT(COde DIvision Testbed)提供的測試數(shù)據(jù),給出了不同業(yè)務在不同無線環(huán)境下的容量.
Abstract:
The developments of Personal Communication and Mobile Computing stimulate the introducation of integrated traffics into mobile communication. CDMA is suitable for transmission of integrated traffics. In this paper, we introduced an admission control algorithm. Under this algorithm, the capacity of a CDMA system for integrated traffics is evaluted. Users with different QoS requirements are allocated different power. To solve the problem of higher-rate traffics using higher powers, wider bandwidth to higher-rate traffics is given. All the traffics are transmitted in the same frequency band. Finally, according to the measured data of CODIT, we derived the capacity of different traffics in different environments.
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