contents chapter ⅰbasic communication knowledge/基礎(chǔ)通信知識 unit 1digital representation of information/信息的數(shù)字描述 unit 2multimedia information and system/多媒體信息與系統(tǒng) unit 3communication system/通信系統(tǒng) unit 4computer system/計算機(jī)系統(tǒng) unit 5computer network/計算機(jī)網(wǎng)絡(luò) unit 6communication channel/通信信道 unit 7history of communication technology/通信技術(shù)的歷史 chapter ⅱcommunication technologies/通信技術(shù) unit 8fdm tdm pcm/頻分復(fù)用時分復(fù)用脈沖編碼調(diào)制 unit 9mobile communication/移動通信 unit 10optical fiber/光纖通信 unit 11satellite communication/衛(wèi)星通信 unit 12wireless communication/無線通信 unit 13isdn/綜合業(yè)務(wù)數(shù)字網(wǎng) unit 14atm/異步傳輸模式 chapter ⅲnew communication technologies/新通信技術(shù) unit 15bluetooth technology/藍(lán)牙技術(shù) unit 16introduction to 3g/第3代移動通信技術(shù)介紹 unit 174g/第4代移動通信技術(shù) unit 185g/第5代移動通信技術(shù) appendix areference answers/練習(xí)參考答案 appendix breference translation/參考譯文 appendix cglossary/詞匯表 reference/參考文獻(xiàn)