| Publisher | Freie Universitat Berlin | ||
|---|---|---|---|
| Format | 215.9KB PDF | Date added | 01 Jan 2007 |
| Topics | Monitoring Systems, TCP - IP, Mobile - Wireless Communications | ||
| Downloads | 20 | ||
Many applications of wireless sensor networks are useful only when connected to an external network. Previous research on transport layer protocols for sensor networks has focused on designing protocols specifically targeted for sensor networks. The deployment of TCP/IP in sensor networks would, however, enable direct connection between the sensor network and external TCP/IP networks. This paper focuses on the performance of TCP in the context of wireless sensor networks. TCP is known to exhibit poor performance in wireless environments, both in terms of throughput and energy efficiency. To overcome these problems the paper introduces a mechanism called Distributed TCP Caching (DTC). The DTC mechanism uses segment caching and local retransmissions to avoid expensive end-to-end retransmissions.
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