A New ATM Adaptation Layer for Time-Critical Traffic over Wireless ATM Networks

Inwhee JOE  

Publication
IEICE TRANSACTIONS on Communications   Vol.E87-B   No.8   pp.2431-2434
Publication Date: 2004/08/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Network
Keyword: 
wireless ATM,  AAL-UDP,  packet discard,  sequence number,  header repetition,  cell error rate,  

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Summary: 
This letter describes the design and performance of a new ATM Adaptation Layer (AAL-UDP) for time-critical traffic over wireless ATM networks. The key ideas in the design consist of no discard at the AAL level and header protection with sequence number mechanism. The UDP/IP header is repeated for reliability, because it contains the most important information such as address and port number. The simulation results show that the AAL-UDP provides significant improvement in throughput as well as in application-level performance compared to the conventional AAL 5 case.