Medium access control (MAC) for ATM-based multiservice wireless personal communication network (PCN)

Pao Yue-kong Library Electronic Theses Database

Medium access control (MAC) for ATM-based multiservice wireless personal communication network (PCN)


Author: Chan, Chuen-ming Anthony
Title: Medium access control (MAC) for ATM-based multiservice wireless personal communication network (PCN)
Degree: M.Sc.
Year: 1997
Subject: Wireless communication systems
Broadband communication systems
Mobile communication systems
Integrated services digital networks
Asynchronous transfer mode
Hong Kong Polytechnic University -- Dissertations
Department: Multi-disciplinary Studies
Pages: xii, 93, [111] leaves : ill. ; 30 cm
Language: English
Abstract: Next-generation multiservices personal communication networks (PCN) soon to be deployed in the near future will be expected to support not only digital voice, but also a range of data and multimedia services. These services span a fairly broad range of bit-rate, service class, and quality-of-service (QoS). Due to the anticipated demand on wireless extensions to future broadband networks, several research organizations have proposed an ATM-based wireless transport architecture capable of supporting 'mobile access' to a mix of broadband ISDN services including constant-bit-rate (CBR), variable-bit-rate (VBR), and packet data. One of the most important and challenging design criteria related to multiservices PCN design is the selection of a suitable 'multimedia capable' medium access control (MAC) techniques at the data-link layer which is also the objective of this project to attempt identifying a suitable MAC protocol. This dissertation aims to present and outline the approach and the methodology on selecting the MAC protocol for use in next-generation ATM-Based multiservice PCN. A review on the current technologies in both fixed broadband and mobile communications is made and the trend favouring the 'wireless ATM' access is explored. The basic requirements of a proper MAC protocol for wireless access are discussed. Additional requirements and design principles on a MAC protocol suitable for 'wireless ATM' access are also highlighted and explained. A survey on seven different MAC proposals for wireless ATM access, each with a fairly detail examination, has been carried out. Comparison on these MAC protocols is made based on their fulfilments on the discussed requirements as well as some defined attributes and features of a MAC protocol. One of the promising MAC protocol, Multiservice Dynamic Reservation TDMA (MDR-TDMA) has been selected particularly for more detailed study by computer simulation. A C-language based simulation program has been written to run on a PC to simulate a mobile cell environment with voice users and data users accessing the channel according to some pre-determined baseline parameter values. The original TOE queue service scheme suggested by Raychaudhuri [1] and two other variants of TOE scheme proposed by the author have been selected and simulated. The performance measures are based on the channel throughput, voice access delay, voice blocking probability, data access delay and data packet loss probability. Based the results from the simulation, a fairly good performance of channel utilization (throughput) of 58-64% is observed at total channel load of 0.6-0.65. The voice blocking probability of <= 1 % and average message / data transmission delay of <= 40 msec can be maintained at this nominal operating point. This MDR-TDMA protocol is therefore found to be suitable for use as a MAC protocol for 'wireless ATM' access next-generation multiservices PCN. In fact, this MDR-TDMA MAC protocol has been adopted and implemented on a working prototype microcellular wireless asynchronous transfer mode network (WATMnet) capable of providing integrated multimedia communication services to mobile terminals.

Files in this item

Files Size Format
b14201860.pdf 7.625Mb PDF
Copyright Undertaking
As a bona fide Library user, I declare that:
  1. I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
  2. I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
  3. I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.


Quick Search


More Information