Medium access control for ATM-to-CDMA interface

Authors:
Aykut Hocanin;Shanuj V. Sarin;Hakan Deliç
Affiliations:
Eastern Mediterranean University, Gazimaǧusa, TRNC;Agilent Technologies, Liberty Lake, Washington;Boǧaziçi University, Bebek 80815 Istanbul, Turkey
Venue:
Wireless Networks
Year:
2002

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Abstract

An integrated medium access control framework for a direct sequence code-division multiple access (CDMA) radio access to an asynchronous transfer mode (ATM) network is considered. The system accommodates multimedia services such as voice and data. The inherently high error rate associated with the multipath fading channel is partly overcome by the introduction of a data link control layer employing one- and two-dimensional CRC codes for error detection/correction in voice and data packets, respectively. Analysis and simulations show promising average delay and error probability performance, as well as low coding redundancy. Two-dimensional CRC, particularly in conjunction with automatic repeat request (ARQ), outperforms convolutional coding with much less overhead and processing requirement at the ATM-CDMA interface.