09-04-2012, 03:58 PM
A SECURE CROSS LAYER MULTIPATH ROUTING FOR MD VIDEO IN WIRELESS MESH NETWORK
IEEE FORMAT new1[1].doc (Size: 107 KB / Downloads: 31)
INTRODUCTION:
In the recent years, communication technology and services have advanced Mobility has become very important, as people want to communicate anytime from and to anywhere IP based computer communication over wireless networks is a research subject that has become more interesting over last few decades of years. In the areas where there is little or no infrastructure is available or the existing wireless infrastructure is expensive and inconvenient to use, mobile Ad hoc Networks, called MANETs are becoming useful.
EXISTING WORK
An uni-casting video technique was used to transmit the video in the wireless network. The main drawback is that it takes more time for transmission & affect the throughput performance the system. When system crash occurs the whole network will affect & the receiver can’t receive the video frames by using uni-cast technique.
To overcome performance issue & system stability cross-layer multi-path routing algorithms are proposed. In this technique, a shortest path & centric routing is driven & the video frames are transmitted to receiver. For security constraint, encryption & decryption technique proposed to avoid network cracking & tracing. An encrypted frame will send to receiver & receiver can decrypt it using public/private key.
CROSS-LAYER COMUNICATIONS:
The main idea in CMRP is to compute multiple power- aware paths during route discovery. It is designed primarily for highly dynamic ad hoc networks where link failures occur frequently. CMRP stores and selects the paths according to signal strength. That is, it stores multiple SDFs of path on receiving routing message from the same source node, and selects a path also with largest SDF when transmitting data .
Simulated Annealing
The goal is merely to find an acceptably good solution in a fixed amount of time, rather than the best possible solution By analogy with this physical process, each step of the SA algorithm replaces the current solution by a random "nearby" solution, chosen with a probability that depends on the difference between the corresponding function values and on a global parameter T (called the temperature), that is gradually decreased during the process.
Tabu search
Tabu search is a mathematical optimization method, belonging to the class of Local search techniques. Tabu search enhances the performance of a local search method by using memory structures once a potential solution has been determined; it is marked as “tabu” so that the algorithm does not visit that possibility repeatedly
Genetic algorithm
A Genetic algorithm is a search techniques used in computing to find exact or approximate solutions to optimization and search Problems. Whenever transfer a new data, it searches new way, then transfer the message.
PERFORMANCE EVALUATION:
It is shown through experimental results our proposals fit our objective which was to improve the performance of routing with dominating sets
CONCLUSION:
Cross layer multipath routing will give better performance compare to normal TCP protocol. Hence encryption technique is used, the video description are used to destination in secure manner. Reactive protocol will give better performance when compare to proactive protocol, hence reactive protocol won't wait for acknowledgement But reactive protocol has more packet loss, so for secure transaction, proactive protocol is best.