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Publications [#322720] of Henry Pfister

Papers Published

  1. Parag, P; Chamberland, JF; Pfister, H; Narayanan, K, Code rate, queueing behavior and the correlated erasure channel, IEEE Information Theory Workshop 2010, ITW 2010 (July, 2010), ISBN 9781424463725 [doi]
    (last updated on 2017/12/14)

    Abstract:
    This paper considers the relationship between coderate selection and queueing performance for communication systems with time-varying parameters. While error-correcting codes offer protection against channel unreliability, there is a tradeoff between the enhanced protection of low-rate codes and the increased information transfer of high-rate codes. Hence, there exists a natural compromise between packet-level error protection and information rate. In the limiting regime where codewords are asymptotically long, this tradeoff is well-understood and characterized by the Shannon capacity. However, for delay-sensitive communication systems and finite code-lengths, a complete characterization of this tradeoff is still not fully developed. This paper offers a new perspective on the queueing performance of communication systems with finite block-lengths operating over correlated erasure channels. A rigorous framework that links code rate to overall system performance for random codes is presented. Guidelines for code rate selection in delay-sensitive systems are identified.

 

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