INTERNATIONAL JOURNAL OF RESEARCH IN COMPUTER APPLICATIONS AND ROBOTICS www.ijrcar.com Vol.3 Issue.4, Pg.: 152-159 April 2015 Ashwini S R & Dr. Nataraj K R Page 152 INTERNATIONAL JOURNAL OF RESEARCH IN COMPUTER APPLICATIONS AND ROBOTICS ISSN 2320-7345 EFFICIENT GEO-ROUTING WITH LOAD BALANCING AND ROUTING AROUND CONNECTIVITY HOLES IN WSN’ s Ashwini S R 1 , Dr. Nataraj K R 2 1 PG Student, DCN, SJBIT, Bangalore 2 Professor and HOD, SJBIT, Bangalore Email: ashwinigowda@gmail.com, nataraj.sjbit@gmail.com Abstract: - Sensing and data collection are monitoring applications that are implemented using Wireless Sensor networks. Geographic routing is well suited for WSN applications. In Geo routing, routing protocol obtains information of each node location. That information is very important for sensor networks. In greedy forwarding, connectivity hole are major issue. This paper presents ALBA, a protocol for geographic forwarding in Wireless Sensor network that balances the load among nodes using a hybrid metric and Rainbow mechanism, it is a node coloring algorithm for routing around dead-ends and connectivity holes without Planarization and face routing. In this paper the performance of ALBA-R in terms of packet delivery ratio, per packet energy consumption and end to end latency is evaluated using ns-2 based simulations. Our results show that ALBA-R is energy efficient protocol compared to the other routing protocol in dense WSN’s i.e., GeRaf/ IRIS, thus it is best suitable for real network deployments. Keywords: Wireless Sensor networks, Geographic routing, Connectivity holes, localization errors. I.INTRODUCTION In WSN, transmission range, Processing and storage capabilities as well as energy resources of sensor node are limited. Routing protocol for wireless Sensor networks routes the packet in the network and ensures reliable multi hop communication. Routers is a networking device that forwards the data packets, using information in its routing table or based on routing policy. Geographic routing or Geo-Routing is a routing scheme based on geographic position information. Geographic routing requires that each node determines its own location and the source is aware of the destination location. Then the message is routed to the destination with this information without using route discovery.