TY - GEN
T1 - A cross-layer adaptation HCCA MAC for QoS-aware H.264 video communications over wireless mesh networks
AU - Oh, Byung Joon
AU - Chen, Chang Wen
PY - 2010
Y1 - 2010
N2 - We present in this paper a novel scheme of QoS-guaranteed transmission of H.264 video over Wireless Mesh Networks (WMNs) based on a Cross-Layer Adaptation HCCA (CLA-HCCA) MAC protocol. This CLA-HCCA strategy utilizes the queue length information at the MAC layer and the MAC layer interference estimation for optimal routing selection at network layer. The scheme will exchange timely Link Capacity Estimation (LCE) information for an adaptive adjustment of spectrally capable transmission at the physical layer. This Cross-Layer Adaptation approach provides an optimized transmission to guarantee the minimum packets delay and drop rate needed for time bound applications, such as video. Since conventional IEEE 802.11e HCCA MAC does not offer cross-layer design framework, we need to resolve the problem associated with IEEE 802.11e HCCA MAC by designing a novel adaptive architecture based on LCE. This integrated scheme allows the physical layer to achieve the optimal transmission via Video-Adaptive FEC (VA-FEC) scheme implemented in the application layer. We evaluate the proposed scheme based on network-level metrics, including bit rate, packets delay and drop rate, in comparison with the state-of-the-art Physical Rate Based Admission Control scheme (PRBAC) HCCA MAC scheme based on IEEE 802.11e WMNs. Extensive simulation results based on H.264 video transmission for the proposed CLA-HCCA and the PRBAC-HCCA schemes have been obtained. We have confirmed that the proposed CLA-HCCA strategy outperforms the PRBAC-HCCA MAC by a significant margin as LCE and VA-FEC is able to adapt to the dynamic network conditions of IEEE 802.11e WMNs in a timely fashion.
AB - We present in this paper a novel scheme of QoS-guaranteed transmission of H.264 video over Wireless Mesh Networks (WMNs) based on a Cross-Layer Adaptation HCCA (CLA-HCCA) MAC protocol. This CLA-HCCA strategy utilizes the queue length information at the MAC layer and the MAC layer interference estimation for optimal routing selection at network layer. The scheme will exchange timely Link Capacity Estimation (LCE) information for an adaptive adjustment of spectrally capable transmission at the physical layer. This Cross-Layer Adaptation approach provides an optimized transmission to guarantee the minimum packets delay and drop rate needed for time bound applications, such as video. Since conventional IEEE 802.11e HCCA MAC does not offer cross-layer design framework, we need to resolve the problem associated with IEEE 802.11e HCCA MAC by designing a novel adaptive architecture based on LCE. This integrated scheme allows the physical layer to achieve the optimal transmission via Video-Adaptive FEC (VA-FEC) scheme implemented in the application layer. We evaluate the proposed scheme based on network-level metrics, including bit rate, packets delay and drop rate, in comparison with the state-of-the-art Physical Rate Based Admission Control scheme (PRBAC) HCCA MAC scheme based on IEEE 802.11e WMNs. Extensive simulation results based on H.264 video transmission for the proposed CLA-HCCA and the PRBAC-HCCA schemes have been obtained. We have confirmed that the proposed CLA-HCCA strategy outperforms the PRBAC-HCCA MAC by a significant margin as LCE and VA-FEC is able to adapt to the dynamic network conditions of IEEE 802.11e WMNs in a timely fashion.
UR - https://www.scopus.com/pages/publications/77956007970
U2 - 10.1109/ISCAS.2010.5537216
DO - 10.1109/ISCAS.2010.5537216
M3 - Conference contribution
AN - SCOPUS:77956007970
SN - 9781424453085
T3 - ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems
SP - 2259
EP - 2262
BT - ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems
T2 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, ISCAS 2010
Y2 - 30 May 2010 through 2 June 2010
ER -