Bluetooth: Carrying voice over ACL links

R. Kapoor, Ling-Jyh Chen, Yeng Zhong Lee, M. Gerla

研究成果: 書貢獻/報告類型會議論文篇章

19 引文 斯高帕斯(Scopus)

摘要

Bluetooth technology will enable users to connect a wide range of electronic devices. Bluetooth devices can connect to form a piconet. Two types of connections can be established in a piconet: the synchronous connection-oriented (SCO) link, and the asynchronous connectionless (ACL) link. SCO links provide a circuit-oriented service with constant bandwidth based on a fixed and periodic allocation of slots. They require a pair of slots once every two, four or six slots, depending upon the SCO packet used. ACL connections, on the other hand, provide a packet-oriented service and span over 1, 3 or 5 slots. The master of the piconet uses a polling mechanism to divide the piconet bandwidth among the ACL links. Since SCO links require a periodic allocation of a pair of slots, they leave very little of the piconet bandwidth available to ACL links. Moreover, the controlled access of Bluetooth ensures that no ACL link gets starved. Under such an access mechanism, ACL links may be sufficient to carry high-quality voice and SCO links may not be needed. Though the voice quality is affected slightly by using ACL instead of SCO links for voice, TCP connections perform much better if SCO links are not used. This paper, thus, makes a case for using ACL in place of SCO links for carrying voice. This renders SCO links redundant.

原文英語
主出版物標題2002 4th International Workshop on Mobile and Wireless Communications Network, MWCN 2002
發行者Institute of Electrical and Electronics Engineers Inc.
頁面379-383
頁數5
ISBN(電子)0780376056, 9780780376052
DOIs
出版狀態已發佈 - 2002 一月 1
事件4th International Workshop on Mobile and Wireless Communications Network, MWCN 2002 - Stockholm, 瑞典
持續時間: 2002 九月 92002 九月 11

出版系列

名字2002 4th International Workshop on Mobile and Wireless Communications Network, MWCN 2002

其他

其他4th International Workshop on Mobile and Wireless Communications Network, MWCN 2002
國家/地區瑞典
城市Stockholm
期間2002/09/092002/09/11

ASJC Scopus subject areas

  • 電腦網路與通信

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