Error Resilient Multipath Video Delivery on Wireless Overlay Networks
Abstract: Real time
applications delivering multimedia data over wireless networks still pose many challenges
due to high throughput and stringent delay requirements. Overlay networks with
multipathtransmission is the promising solution to address the above problems.
But in wireless networks themaintenance of overlay networks induce additional
overheads affecting the bulky and delay sensitive delivery of multimedia data.
To minimize the overheads, this work introduces the Error Compensated Data Distribution
Model (ECDD) that aids in reducing end to end delays and overheads arising from
packet retransmissions. The ECDD adopts mTreebone algorithm to identify the
unstable wireless nodes and construct overlay tree. The overlay tree is further
split to support multipath transmissions. A sub packetization mechanism is
adopted for multipath video data delivery in the ECDD. A forward error correction
mechanism and sub-packet retransmission techniques adopted in ECDD enables to
reduce the overhead and end to end delay. The simulation results presented in
this paper prove that the ECDD model proposed achieves lower end to end delay
and outperforms the existing models in place. Retransmission requests are
minimized by about 52.27% and bit errors are reduced by about 23.93% than
Sub-Packet based Multipath Load Distribution.
Author: B Uma Maheswari, TSB
Sudarshan
Journal Code: jptkomputergg160260
