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Dynamic reservation TDMA medium access control protocol for wireless ATM networks Frigon, Jean-François
Abstract
To meet the anticipated demand for wireless access to the broadband Asynchronous Transfer Mode (ATM) network, the concept of wireless ATM has been proposed in 1994 [1]. One of the main challenge in the design of a wireless ATM network resides in the conception of a Medium Access Control (MAC) protocol that will handle the different ATM services while providing an efficient utilization of the wireless channel. In this thesis, we propose a new Dynamic Reservation TDMA (DR-TDMA) MAC protocol for wireless ATM networks. DR-TDMA combines the advantage of distributed access and centralized control for transporting Constant Bit Rate (CBR), Variable Bit Rate (VBR) and Available Bit Rate (ABR) traffic efficiently over a wireless channel. The contention slots access is governed by the novel framed pseudo-Bayesian priority Aloha protocol that we introduce in this thesis. This protocol minimizes the contention delay and provides different access priorities for heterogeneous traffic. Simulation results indicate that the framed pseudo-Bayesian priority protocol offers a significant delay improvement for high priority packets with both Poisson and self-similar traffic, while low priority packets only experience a slight performance degradation. In the context of the DR-TDMA protocol, results show that the priority algorithm improves real-time traffic Quality-of-Service (QoS). The DR-TDMA resource allocation algorithm grants to terminals reserved access to the wireless ATM channel by considering their requested bandwidth and QoS. We propose scheduling algorithms for CBR, voice, VBR and ABR traffic. We also introduce a method to dynamically adjust the number of uplink control slots per frame as a function of the estimated contention traffic. Furthermore, the DR-TDMA protocol features a novel rate based allocation algorithm for VBR traffic and a cell control algorithm to determine the VBR flow conformance with the connection traffic parameters. Finally, an algorithm is proposed to integrate these algorithms to provide ubiquitous wireless ATM services. Performance, results show that the DR-TDMA MAC protocol can achieve high throughput in the range of 90 to 95% while maintaining reasonable QoS for all ATM services.
Item Metadata
Title |
Dynamic reservation TDMA medium access control protocol for wireless ATM networks
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1998
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Description |
To meet the anticipated demand for wireless access to the broadband Asynchronous
Transfer Mode (ATM) network, the concept of wireless ATM has been proposed in 1994
[1]. One of the main challenge in the design of a wireless ATM network resides in the
conception of a Medium Access Control (MAC) protocol that will handle the different
ATM services while providing an efficient utilization of the wireless channel.
In this thesis, we propose a new Dynamic Reservation TDMA (DR-TDMA) MAC
protocol for wireless ATM networks. DR-TDMA combines the advantage of distributed
access and centralized control for transporting Constant Bit Rate (CBR), Variable Bit
Rate (VBR) and Available Bit Rate (ABR) traffic efficiently over a wireless channel.
The contention slots access is governed by the novel framed pseudo-Bayesian priority
Aloha protocol that we introduce in this thesis. This protocol minimizes the contention
delay and provides different access priorities for heterogeneous traffic. Simulation results
indicate that the framed pseudo-Bayesian priority protocol offers a significant delay improvement
for high priority packets with both Poisson and self-similar traffic, while low
priority packets only experience a slight performance degradation. In the context of the
DR-TDMA protocol, results show that the priority algorithm improves real-time traffic
Quality-of-Service (QoS).
The DR-TDMA resource allocation algorithm grants to terminals reserved access
to the wireless ATM channel by considering their requested bandwidth and QoS. We
propose scheduling algorithms for CBR, voice, VBR and ABR traffic. We also introduce
a method to dynamically adjust the number of uplink control slots per frame as a function
of the estimated contention traffic. Furthermore, the DR-TDMA protocol features a novel rate based allocation algorithm for VBR traffic and a cell control algorithm to
determine the VBR flow conformance with the connection traffic parameters. Finally, an
algorithm is proposed to integrate these algorithms to provide ubiquitous wireless ATM
services. Performance, results show that the DR-TDMA MAC protocol can achieve high
throughput in the range of 90 to 95% while maintaining reasonable QoS for all ATM
services.
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Extent |
8612507 bytes
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Genre | |
Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2009-05-28
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0064847
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
1998-11
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.