16-08-2014, 03:03 PM
ROJECT ON MULTI-CHANNEL MULTI-PATH VIDEO TRANSMISSION OVER WSN USING ACDP TECHNIQUE
MULTI-CHANNEL MULTI-PATH.pptx (Size: 712.66 KB / Downloads: 7)
INTRODUCTION
Distinct feature of WMSNs
Compression method used
QoS Considered
PROBLEM STATEMENT
It has been observed that most schemes use multiple paths and single channel and only a single metric is adopted to make a performance evaluation.
Solution: The proposed MCMP scheme.
OBJECTIVES
The objectives of the project are:
To transmit a huge amount of multimedia data, over bandwidth-constrained sensor network.
To effectively deal with the high bandwidth requirement.
Prolong the network lifetime.
Minimize the delay.
Using the multiple paths and Quality of Service (QoS) metrics for performance analysis.
LITERATURE REVIEW
Das et.al., In 2000
scheme: Improving quality-of-service in ad hoc wireless networks with adaptive multi-path routing.
Adv: dynamically finds the path to transmit a data
Disadv: does not provide a reliable delivery of packet.
X. Hou et.al., in 2004
Scheme: Label-based multipath routing (LMR) in wireless sensor routing.
Adv: Provides a backup path to protect a primary path.
Disadv: it is a static preestablished path. Do not cope up dynamically
Feleman et.al., in 2006.
Scheme: Multipath multi-SPEED protocol (MMSPEED).
Adv: QoS guarantee on timeliness and reliability.
end to end delay requirement supported.
Disadv: B/w utilization is less.
Wang et.al., in 2007
Scheme: Traffic-aware relay node deployment for data collection in wireless sensor networks.
Adv: Data collection model based on agent mobility.
Disadv: can not manage a load on nodes separated by 2 hops.
LIMITATIONS OF EXISTING SYSTEM
The following are the limitations of existing system
It uses single QoS metric.
Its Spectral efficiency is low.
No backup recovery path.
The channel utilization is significantly less and delay is more.
ADVANTAGES OF PROPOSED SYSTEM
Following are the advantages of proposed system
It uses Multiple QoS metrics.
The source video cameras are equipped with a small microprocessor.
The gateway has a buffer of considerable size.
The header of each video frame is appended with a frame number and source camera ID for identification purposes.
The round robin fashion is adopted in order to transmit the packets.
CONCLUSION
In the first stage, three best paths are identified .
In the second stage the primary path is identified.
A failover scenario has also been incorporated.
Uses the buffer in gateway.
The proposed scheme makes use of multiple paths and Quality of Service (QoS) metrics like for performance analysis.