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On the Packet Delay in 1-D Wireless Local Area Network with Down-link Multicast Traffic
(MUCOM)
1995 (English)In: 2nd IEEE International Workshop on Mobile Multimedia Communications, 1995. (MoMuC '95), 11-13 April, Bristol, England, IEEE , 1995, p. A5/1/1-6-Conference paper, Published paper (Refereed)
Abstract [en]

As a part of the design of WLANs, a thorough understanding of the performance of media access algorithms for multicast traffic is desirable. The effects of mobile end-users, multimedia applications and adjustments to future hardware trade-offs, will probably result in a significantly higher degree of multicast traffic in evolving WLANs. Furthermore, an efficient frequency utilisation is of vital interest for WLANs, in order for these systems to support a large number of users. Multicast traffic provides higher channel utilisation compared with unicast traffic. In this paper we will study two different multiple access protocols for the down-link in 1-dimensional indoor multicast packet radio networks: CSMA, and multi-channel ALOHA. The multi-channel ALOHA protocol is a combination of the TDMA and ALOHA protocols. A packet radio network is here comprised of adjacent WLANs. Each WLAN consists of one access point and a number of end-users. The two protocols are investigated with respect to the average packet delay. Shadow fading channels are considered in this work. The receivers utilise power capture to reduce the effects from CCI. The results indicate, that single channel CSMA utilises the available bandwidth more efficiently than multichannel ALOHA in most of the situations studied. Finally, it can be observed from the results, that the packet delay is determined mainly by the traffic load and the CCI when there is a deterministic path loss between an access-point and its target receivers. On the other hand, when the path loss between an access-point and its target receivers is subject to shadow fading, the packet delay depends strongly on the characteristics of the shadow fading process

Place, publisher, year, edition, pages
IEEE , 1995. p. A5/1/1-6-
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-11673OAI: oai:DiVA.org:miun-11673DiVA, id: diva2:323934
Available from: 2010-06-13 Created: 2010-06-13 Last updated: 2010-08-18Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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