A receiver-oriented approach for efficient link-level mobile data integrity

The transmission of data on wireless links requires some means of preserving data integrity in spite of the higher error rates expected in a typical radio environment. Both the use of an appropriate Forward Error Correction (FEC) coding and a suitable Automatic Repeat Request (ARQ) protocol are considered for non time critical services [1]. Their use is reconsidered in view of the large number of simultaneously active logical connections or “sessions” in typical 3rd generation wireless data applications such as web browsing from a wireless IP terminal which may lead to storage, bandwidth and processing requirements exceeding the size and power restrictions of the receiver. The proposed framework for realization of a receiver-efficient selective-repeat mechanism with minimal overhead in combination with forward error-correction is described and quantitative guidelines are presented.