Improving wireless link throughput via interleaved FEC

Authors:
Ling-Jyh Chen;T. Sun;M. Y. Sanadidi;M. Gerla
Affiliations:
Dept. of Comput. Sci., California Univ., Los Angeles, CA, USA;Dept. of Comput. Sci., California Univ., Los Angeles, CA, USA;Dept. of Comput. Sci., California Univ., Los Angeles, CA, USA;Dept. of Comput. Sci., California Univ., Los Angeles, CA, USA
Venue:
ISCC '04 Proceedings of the Ninth International Symposium on Computers and Communications 2004 Volume 2 (ISCC"04) - Volume 02
Year:
2004

Citing 0
Cited 2

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Performance Evaluation
Buffer Coding for Reliable Transmissions over Wireless Networks

Computer Communications

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Abstract

Wireless communication is inherently vulnerable to errors from the dynamic wireless environment. Link layer packets discarded due to these errors impose a serious limitation on the maximum achievable throughput in the wireless channel. To enhance the overall throughput of wireless communication, it is necessary to have a link layer transmission scheme that is robust to the errors intrinsic to the wireless channel. To this end, we present interleaved-forward error correction (I-FEC), a clever link layer coding scheme that protects link layer data against random and busty errors. We examine the level of data protection provided by I-FEC against other popular schemes. We also simulate I-FEC in Bluetooth, and compare the TCP throughput result with Bluetooth's integrated FEC coding feature. We show that I-FEC consistently and significantly outperforms other link layer coding schemes by providing an impressive amount of protection against heavy channel burst errors.