DocumentCode :
2809587
Title :
Performance evaluation of a mobile QoS adaptation strategy for wireless ATM networks
Author :
Lin, George ; Toh, C.K.
Author_Institution :
IBM Global Service, San Francisco, CA, USA
Volume :
2
fYear :
1999
fDate :
1999
Firstpage :
744
Abstract :
We introduce an end-to-end QoS adaptation framework to resolve QoS inconsistencies as a result of mobile handoffs in wireless ATM (WATM) networks. We define mobile QoS (M-QoS) to comprise of wired, wireless and handoff QoS parameters. We introduce two forms of adaptation, namely: (a) application and (b) network QoS adaptation. The former is concerned with bandwidth, delay variation and packet loss adaptation by the mobile application while the latter refers to M-QoS fulfilment, upgrade and downgrade. New procedures are defined for M-QoS upgrade and downgrade, so that QoS `refresh´ traffic is controlled and the overall time required to perform a handoff remains largely unaffected. Results obtained from a call-level mobile network simulator further confirms the advantages of the proposed QoS adaptation scheme
Keywords :
asynchronous transfer mode; cellular radio; delays; digital simulation; packet radio networks; quality of service; telecommunication traffic; M-QoS downgrade; M-QoS upgrade; QoS parameters; WATM networks; application QoS adaptation; bandwidth; call-level mobile network simulator; cellular radio; delay variation; handoff; mobile QoS adaptation; mobile application; mobile handoffs; network QoS adaptation; packet loss adaptation; performance evaluation; wireless ATM networks; Added delay; Bandwidth; Communication system traffic control; Contracts; Frequency; Signal resolution; Stability; Traffic control; Wireless sensor networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, 1999. ICC '99. 1999 IEEE International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-5284-X
Type :
conf
DOI :
10.1109/ICC.1999.765373
Filename :
765373
Link To Document :
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