JTP: An Energy-conscious Transport Protocol for Wireless Ad Hoc Networks
BOSTON UNIV MA DEPT OF COMPUTER SCIENCE
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Within a recently developed low-power ad hoc network system, we present a transport protocol JTP whose goal is to reduce power consumption without trading off delivery requirements of applications. JTP has the following features it is lightweight whereby end-nodes control in-network actions by encoding delivery requirements in packet headers JTP enables applications to specify a range of reliability requirements, thus allocating the right energy budget to packets JTP minimizes feedback control traffic from the destination by varying its frequency based on delivery requirements and stability of the network JTP minimizes energy consumption by implementing in-network caching and increasing the chances that data retransmission requests from destinations hit these caches, thus avoiding costly source retransmissions and JTP fairly allocates bandwidth among flows by backing off the sending rate of a source to account for in-network retransmissions on its behalf. Analysis and extensive simulations demonstrate the energy gains of JTP over one-size-fits-all transport protocols.
- Computer Systems Management and Standards
- Radiofrequency Wave Propagation
- Radio Communications