PAWAR INFOTECH
Multipath routing in wireless multimedia sensor network makes it possible to transfer data simultaneously so as to reduce delay and congestion and it is worth researching. However, the current multipath routing strategy may cause problem that the node energy near sink becomes obviously higher than other nodes which makes the network invalid and dead. It also has serious impact on the performance of wireless multimedia sensor network (WMSN). In this paper, we propose a pairwise directional geographical routing (PWDGR) strategy to solve the energy bottleneck problem. First, the source node can send the data to the pair-wise node around the sink node in accordance with certain algorithm and then it will send the data to the sink node. These pair-wise nodes are equally selected in 360 ◦ scope around sink according to a certain algorithm. Therefore, it can effectively relieve the serious energy burden around Sink and also make a balance between energy consumption and end-to-end delay. Theoretical analysis and a lot of simulation experiments on PWDGR have been done and the results indicate that PWDGR is superior to the proposed strategies of the similar strategies both in the view of the theory and the results of those simulation experiments. With respect to the strategies of the same kind, PWDGR is able to prolong 70% network life. The delay time is also measured and it is only increased by 8.1% compared with the similar strategies.
S B College Road Jajee Complex Gulbarga Cell+91 9916033035

PAWAR INFOTECH

Ad hoc on-demand multipath distance vector (AOMDV) is a multipath protocol which is designed according to ad hoc on-demand distance vector
(AODV) and AOMDV builds uncrossed multipath loop-free links. However, load distribution mechanism is not introduced into AOMDV for multipath transmission and standby path is used for communication unless the main path is broken.
 It uses different route table management strategies to build path with optimal hop to the sink, adds the delay time into route table, and takes nodes of middle nodes with less delay time as next node. However, the whole path needs to be flooded at the stage of building route in protocol and keeping route table information at each node will consume large quantity of energy.
 Low-interference energy-efficient multipath routing protocol (LIEMRO) selects next node through cost function which considers node residual energy, node interference and link quality (ETX value). I2MR needs special network architecture and especial hardware supporting and it is not feasible for many applications.
DISADVANTAGES OF EXISTING SYSTEM:

More energy consumption
S B College Road Jajee Complex Gulbarga Cell+91 9916033035

PAWAR INFOTECH

Reduce the network lifetime

Low-interference energy-efficient multipath routing protocol is not feasible for many applications
 In this project, we propose a pair-wise directional geographical routing
(PWDGR) strategy to solve the energy bottleneck problem. We make the full use of the nodes that around sink through pair-wise node.

The path angle around sink has been ignored in the previous researches and, therefore, it is unable to make full use of neighbor nodes around sink. In our program, the neighbor nodes in the 360 ◦ scope around sink are fully used, transmission angle of paths is selected in the 360 ◦ scope, and pair-wise node is selected as destination node in the 360
◦ scope around sink node according to the transmission path of each path when source sends data in paths and then retransmits to sink after arriving the pair-wise node.
 The algorithm of source multipath dispatch-selection first-hop node is optimized by taking the energy consumption problem into consideration and the follow-up retransmission node changes accordingly after the first hope node changes so that the energy consumption of the whole network keeps balance to a higher degree.
ADVANTAGES OF PROPOSED SYSTEM:
S B College Road Jajee Complex Gulbarga Cell+91 9916033035

PAWAR INFOTECH

Reduce the energy consumption

Increase the network lifetime
S B College Road Jajee Complex Gulbarga Cell+91 9916033035

PAWAR INFOTECH
S B College Road Jajee Complex Gulbarga Cell+91 9916033035

PAWAR INFOTECH
PWDGR
Balance the energy consumption
Directional
Geographical Routing
Solve the energy bottleneck problem
Pair-wise nodes are equally selected
360 o scope
By use certain algorithm
Send data to sink
Source node sends data
Around the sink
Pair wise nodes

System

Hard Disk
 Floppy Drive
: Pentium IV 2.4 GHz.
: 40 GB.
: 1.44 Mb.
S B College Road Jajee Complex Gulbarga Cell+91 9916033035

PAWAR INFOTECH

Monitor
 Mouse
 Ram
: 15 VGA Colour.
: Logitech.
: 512 Mb.
SOFTWARE REQUIREMENTS:
 Operating system : Windows XP/7/LINUX.

Implementation : NS2

NS2 Version : NS2.2.28

Front End : OTCL (Object Oriented Tool Command
Language)
 Tool : Cygwin (To simulate in Windows OS)
Junfeng Wang, Yin Zhang, Jialun Wang, Yujun Ma, and Min Chen, Senior
Member, IEEE, “PWDGR: Pair-Wise Directional Geographical Routing Based on
Wireless Sensor Network”, IEEE INTERNET OF THINGS JOURNAL, VOL.
2, NO. 1, FEBRUARY 2015.
S B College Road Jajee Complex Gulbarga Cell+91 9916033035

PAWAR INFOTECH
S B College Road Jajee Complex Gulbarga Cell+91 9916033035