Anycast Cloud Routing for Wireless Networks

To cope with unpredictable packet losses caused by the wireless environment there exist techniques using route selection, retransmission, and buffering. This can make losses incurred over a one or two hop path acceptable. However, as the number of hops in the path increases to three, four, and beyond packet losses inexorably add up and exceed the limits of these techniques. This can cause unacceptable interruptions in content delivery and make it impossible to meet service level agreements. In a wireless cloud with multiple entry points an incorrect entry point selection can result in unnecessary additional hops causing unacceptable interruption of service. Addressing this problem in this work we present an anycast entry point selection technique that minimizes hop count in a wireless cloud through intelligent selection of entry points into the cloud.