Acknowledgment Procedures at Radio Link Control Level in GPRS. Ajib, W. & Godlewski, P. Wireless Networks, 7(3):237-247, 2001.
Acknowledgment Procedures at Radio Link Control Level in GPRS [link]Paper  bibtex   
@article{ Ajib01,
  author = {Wessam Ajib and Philippe Godlewski},
  title = {Acknowledgment Procedures at Radio Link Control Level in {GPRS}},
  journal = {Wireless Networks},
  year = {2001},
  volume = {7},
  number = {3},
  pages = {237-247},
  annote = {The authors propose a new hybrid FEC/ARQ mechanism for GPRS. The idea is to reduce the number of Ack/NAck blocks required at the RLC level. The FEC part works as follows: Information blocks are transmitted first, and in case of errors redundancy blocks are also transmitted. If FEC fails to recover data, then RLC falls back to use its standard Ack/NAck procedures. The proposed mechanism rely on feedback information, but the number of explicit Ack/NAck blocks are reduced, since the feedback is transmitted in unused header fields of control blocks that are used for other signaling purposes (e.g. count down, timing advance). The proposed FEC/ARQ mechanism was evaluated by simulations. The channel was modeled as a two state Gilbert model. The proposed mechanism performed better than standard RLC procedures. The gain was highest for CS-1 and for a channel quality varying over time.},
  url = {papers/ajib99acknowledgement.ps.gz},
  submitter = {Annika Wennstr̈{o}m},
  bibdate = {Thu Aug 1 14:42:34 CEST 2002}
}

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