A Low-Complexity Source Encoding Assisted Multiple Access Protocol for Voice/Data Integrated Networks
<p/> <p>We present and evaluate the performance of a reduced complexity variation to the source encoding assisted multiple access (SEAMA) protocol for integrating voice and data over a wireless network. This protocol, denoted as slow movable-boundary SEAMA (SMB-SEAMA), uses the same embe...
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Online Access: | http://dx.doi.org/10.1155/ASP.2005.193 |
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doaj-58add4d4fbdc42ea89f519fe0f788a5d2020-11-24T23:16:29ZengSpringerOpenEURASIP Journal on Advances in Signal Processing1687-61721687-61802005-01-0120052901858A Low-Complexity Source Encoding Assisted Multiple Access Protocol for Voice/Data Integrated NetworksKwasinski AndresAlasti MehdiLiu KJ RayFarvardin Nariman<p/> <p>We present and evaluate the performance of a reduced complexity variation to the source encoding assisted multiple access (SEAMA) protocol for integrating voice and data over a wireless network. This protocol, denoted as slow movable-boundary SEAMA (SMB-SEAMA), uses the same embedded and multistate voice encoder used in the original SEAMA protocol. However, in SMB-SEAMA, the movable voice/data boundary is not set based on the frame-by-frame bandwidth demand of the voice subsystem, but on the number of ongoing voice calls and the acceptable average distortion level. This results in a protocol that, at the network layer, is packet switched for both voice and data; however, from the data traffic point of view, voice looks like circuit switched. Analytical results show that SMB-SEAMA is a very efficient MAC protocol and present a model for analyzing the performance of queuing systems with a variable number of servers, each with constant service time. Consequently, while reducing the refreshing rate of the movable boundary by three orders of magnitude, simulation results demonstrate that SMB-SEAMA does not significantly degrade the system performance (less than <inline-formula><graphic file="1687-6180-2005-901858-i1.gif"/></inline-formula> reduction in throughput) and it still performs better than packet reservation multiple access (PRMA), the other known packet-switched scheme, which updates the boundary during every transmit frame.</p>http://dx.doi.org/10.1155/ASP.2005.193 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Kwasinski Andres Alasti Mehdi Liu KJ Ray Farvardin Nariman |
spellingShingle |
Kwasinski Andres Alasti Mehdi Liu KJ Ray Farvardin Nariman A Low-Complexity Source Encoding Assisted Multiple Access Protocol for Voice/Data Integrated Networks EURASIP Journal on Advances in Signal Processing |
author_facet |
Kwasinski Andres Alasti Mehdi Liu KJ Ray Farvardin Nariman |
author_sort |
Kwasinski Andres |
title |
A Low-Complexity Source Encoding Assisted Multiple Access Protocol for Voice/Data Integrated Networks |
title_short |
A Low-Complexity Source Encoding Assisted Multiple Access Protocol for Voice/Data Integrated Networks |
title_full |
A Low-Complexity Source Encoding Assisted Multiple Access Protocol for Voice/Data Integrated Networks |
title_fullStr |
A Low-Complexity Source Encoding Assisted Multiple Access Protocol for Voice/Data Integrated Networks |
title_full_unstemmed |
A Low-Complexity Source Encoding Assisted Multiple Access Protocol for Voice/Data Integrated Networks |
title_sort |
low-complexity source encoding assisted multiple access protocol for voice/data integrated networks |
publisher |
SpringerOpen |
series |
EURASIP Journal on Advances in Signal Processing |
issn |
1687-6172 1687-6180 |
publishDate |
2005-01-01 |
description |
<p/> <p>We present and evaluate the performance of a reduced complexity variation to the source encoding assisted multiple access (SEAMA) protocol for integrating voice and data over a wireless network. This protocol, denoted as slow movable-boundary SEAMA (SMB-SEAMA), uses the same embedded and multistate voice encoder used in the original SEAMA protocol. However, in SMB-SEAMA, the movable voice/data boundary is not set based on the frame-by-frame bandwidth demand of the voice subsystem, but on the number of ongoing voice calls and the acceptable average distortion level. This results in a protocol that, at the network layer, is packet switched for both voice and data; however, from the data traffic point of view, voice looks like circuit switched. Analytical results show that SMB-SEAMA is a very efficient MAC protocol and present a model for analyzing the performance of queuing systems with a variable number of servers, each with constant service time. Consequently, while reducing the refreshing rate of the movable boundary by three orders of magnitude, simulation results demonstrate that SMB-SEAMA does not significantly degrade the system performance (less than <inline-formula><graphic file="1687-6180-2005-901858-i1.gif"/></inline-formula> reduction in throughput) and it still performs better than packet reservation multiple access (PRMA), the other known packet-switched scheme, which updates the boundary during every transmit frame.</p> |
url |
http://dx.doi.org/10.1155/ASP.2005.193 |
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