Sayandeep Sen
ABSTRACT
Errors are integral part of every communication system, whether wired or wireless. There are two broad approaches to deal with errors: (i) detection and discard of data elements in error and (ii) optional recovery from such errors either through proactive or reactive (re)-transmissions. Both these approaches assume that errors are binary in nature, i.e., an error in transmission implies a need to discard or recover the erroneous bits. In this paper, we consider an intriguing alternative, one in which data elements in error are accepted as "approximately correct" values. We call this approximate communication. More specifically, we introduce the notion that data elements being received are not just correct or incorrect. Instead, there exists a degree of correctness in the received data elements that can be effectively exploited by certain classes of popular applications operating across mobile communication systems.
- N. Feamster and H. Balakrishnan. Packet loss recovery for streaming video. In Packet Video Workshop, 2002.Google Scholar
- W. R. Heinzelman, M. Budagavi, and R. Talluri. Unequal error protection of mpeg-4 compressed video. ICIP, 1999.Google ScholarCross Ref
- K. Jamieson and H. Balakrishnan. Ppr: partial packet recovery for wireless networks. SIGCOMM, 2007. Google ScholarDigital Library
- Z. Lu and W. A. Pearlman. An efficient, low-complexity audio coder delivering multiple levels of quality for interactive applications. IEEE Workshop on Multimedia Signal Processing, 1998.Google Scholar
- H. Seferoglu, Y. Altunbasak, O. Gurbuz, and O. Ercetin. Rate-distortion optimized joint arq-fec scheme for real-time wireless multimedia. ICC, 2005.Google ScholarCross Ref
- G. Ungerboeck. Channel coding with multilevel/phase signals. In IEEE Trans. on Information Theory, 2006.Google Scholar
- G. R. Woo, P. Kheradpour, D. Shen, and D. Katabi. Beyond the bits: cooperative packet recovery using physical layer information. In MOBICOM, 2007. Google ScholarDigital Library
- R. Zaragoza, M. P. C. Fossorier, S. Lin, and H. Imai. Multilevel coded modulation for unequal error protection and multistage decoding-part 1: Symmetric constellations. In IEEE Transactions on Communications, 1999.Google Scholar
Recommendations
Design and implementation of an "approximate" communication system for wireless media applications
SIGCOMM '10All practical wireless communication systems are prone to errors. At the symbol level such wireless errors have a well-defined structure: when a receiver decodes a symbol erroneously, it is more likely that the decoded symbol is a good "approximation" ...
Design and implementation of an "approximate" communication system for wireless media applications
SIGCOMM '10: Proceedings of the ACM SIGCOMM 2010 conferenceAll practical wireless communication systems are prone to errors. At the symbol level such wireless errors have a well-defined structure: when a receiver decodes a symbol erroneously, it is more likely that the decoded symbol is a good "approximation" ...
Design and implementation of an "Approximate" communication system for wireless media applications
All practical wireless communication systems are prone to errors. At the symbol level, such wireless errors have a well-defined structure: When a receiver decodes a symbol erroneously, it is more likely that the decoded symbol is a good "approximation" ...
Comments