NDLI: Capacity of 1-to-K broadcast packet erasure channels with channel output feedback

Content Provider	IEEE Xplore Digital Library
Author	Chih-Chun Wang
Copyright Year	2010
Description	Author affiliation: Center of Wireless Systems and Applications (CWSA), School of Electrical and Computer Engineering, Purdue University, USA (Chih-Chun Wang)
Abstract	This paper focuses on the 1-to-K broadcast packet erasure channel (PEC), which is a generalization of the broadcast binary erasure channel from the binary symbol to that of arbitrary finite fields GF(q) with sufficiently large q. We consider the setting in which the source node has instant feedback of the channel outputs of the K receivers after each transmission. Such a setting directly models network coded packet transmission in the downlink direction with integrated feedback mechanisms (such as Automatic Repeat reQuest (ARQ)). The main results of this paper are: (i) The capacity region for general 1-to-3 broadcast PECs, and (ii) The capacity region for two classes of 1-to-K broadcast PECs: the symmetric PECs, and the spatially independent PECs with one-sided fairness constraints. This paper also develops (iii) A pair of outer and inner bounds of the capacity region for arbitrary 1-to-K broadcast PECs, which can be evaluated by any linear programming solver. For most practical scenarios, the outer and inner bounds meet and thus jointly characterize the capacity.
Starting Page	1347
Ending Page	1354
File Size	496572
Page Count	8
File Format	PDF
ISBN	9781424482153
e-ISBN	9781424482160
DOI	10.1109/ALLERTON.2010.5707070
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Algorithms channel output feedback network code alignment Receivers Interference Network coding Encoding broadcast capacity Output feedback Packet erasure channels
Content Type	Text
Resource Type	Article

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