I2TS 02 CTCP: Analisando a Entrega, Latência e Consumo de Energia (I2TS 02 CTCP: Analyzing Delivery, Latency and Power Consumption)

Eugênia Giancoli (eugenia@gta.ufrj.br), Filippe Coury Jabour Neto (jabour@gta.ufrj.br), Aloysio de Castro Pinto Pedroza (aloysio@gta.ufrj.br)

Universidade Federal do Rio de Janeiro
This paper appears in: Revista IEEE América Latina

Publication Date: Aug. 2009
Volume: 7,   Issue: 4 
ISSN: 1548-0992

This work presents Collaborative Transport Control Protocol (CTCP), a new transport protocol for sensor networks. Itaims at providing end-to-end reliability and adapts itself to different applications through a two level mechanism ofreliability variation. CTCP achieves these properties using hop-by-hop acknowledgments and a storage controlalgorithm that operates at each node along a flow. It was observed that distributed fault recovery increases theaverage delivery rate and that duplication of storage responsibility minimizes the message loss. Its congestion controldifferentiates communication losses from buffer overflow. CTCP is called collaborative because all nodes detect andact on congestion control and also because it includes distributed storage responsibility. It is scalable andindependent of the underlying network layer. The protocol energy consumption overhead was calculated anddiscussed for two reliability levels

Index Terms:
Sensor networks, transport protocols, reliable delivery   

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