TY - GEN
T1 - Measured delay distribution in a wireless mesh network test-bed
AU - Ali, Najah Abu
AU - Ekram, Essa
AU - Eljasmy, Ali
AU - Shuaib, Khaled
PY - 2008/8/28
Y1 - 2008/8/28
N2 - A lot of work has been done to evaluate the real time applications' performance over wireless networks. Some work focused on delay as a performance metric. However, no work studied the delay random behavior over a test-bed which imitates as much as possible actual operative networks. In this paper, we designed and run different experiments over heterogeneous 802.11 Wireless Mesh Network (WMN) test-bed with a scope of studying the delay probability distribution over multihop WMN. We anticipate that by knowing the link delay distribution, we will be able to use this information to design sound algorithms to provide for QoS. For example, designing a partitioning algorithm capable of partitioning multiple end-to-end QoS requirements into link QoS requirements. We designed different experiments to measure the link and end-to-end delays over the WMN test-bed. The measured link delays are used to construct an empirical histogram. Our experiments reveal that irrespective of the number of hops along the paths and type of traffic crossing the link, the empirical histograms almost have same general shapes. The empirical histograms are fitted into different types of standard pdf distributions. We found that the best fits for almost 90% of the empirical distributions are two standard distributions; gamma and logistic.
AB - A lot of work has been done to evaluate the real time applications' performance over wireless networks. Some work focused on delay as a performance metric. However, no work studied the delay random behavior over a test-bed which imitates as much as possible actual operative networks. In this paper, we designed and run different experiments over heterogeneous 802.11 Wireless Mesh Network (WMN) test-bed with a scope of studying the delay probability distribution over multihop WMN. We anticipate that by knowing the link delay distribution, we will be able to use this information to design sound algorithms to provide for QoS. For example, designing a partitioning algorithm capable of partitioning multiple end-to-end QoS requirements into link QoS requirements. We designed different experiments to measure the link and end-to-end delays over the WMN test-bed. The measured link delays are used to construct an empirical histogram. Our experiments reveal that irrespective of the number of hops along the paths and type of traffic crossing the link, the empirical histograms almost have same general shapes. The empirical histograms are fitted into different types of standard pdf distributions. We found that the best fits for almost 90% of the empirical distributions are two standard distributions; gamma and logistic.
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U2 - 10.1109/AICCSA.2008.4493540
DO - 10.1109/AICCSA.2008.4493540
M3 - Conference contribution
AN - SCOPUS:50049116670
SN - 9781424419685
T3 - AICCSA 08 - 6th IEEE/ACS International Conference on Computer Systems and Applications
SP - 236
EP - 240
BT - AICCSA 08 - 6th IEEE/ACS International Conference on Computer Systems and Applications
T2 - s6th IEEE/ACS International Conference on Computer Systems and Applications, AICCSA 2008
Y2 - 31 March 2008 through 4 April 2008
ER -