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In recent years, Internet Protocol (IP) telephony is becoming popular because it offers more flexibility in the implementation of new features and services. Session Initiation Protocol (SIP) is a peer-to-peer, multimedia signaling protocol standardized by the Internet Engineering Task Force (IETF) plays a vital role in providing services to IP telephony. SIP is ASCII-based, resembling HTTP, and reuses...
Wireless Sensor Networks (WSNs) operate with varying duty cycles to meet their application-specific criteria such as the availability, reliability, and the life expectancy of the system. This variation in duty cycle consequently affects the system characteristics including the interference and collision of signals. However, the sensitivity to physical jamming attacks with respect to duty cycle of...
In recent years, Session Initiation Protocol (SIP) based Voice over IP (VoIP) based applications are alternative to the traditional Public Switched Telephone Networks (PSTN) because of its flexibility in the implementation of new features and services. The Session Initiation Protocol (SIP) is becoming a popular signaling protocol for Voice over IP (VoIP) based applications. The SIP Proxy server is...
As wireless networks are deployed widely and user expectations grow, it is important to study the trade-offs among goodput, latency and loss rates that exist in link and transport protocols. Under low residual loss rates, retransmissions can be effective in bringing down the loss rate. However, at high loss rates, current links trade-off goodput and low latency for a small loss rate which diminishes...
Airborne links are playing an increasingly important role in defense and military scenarios. This makes it important to investigate the performance of existing transport protocols over such links. Airborne links experience high variation in quality due to mobility, weather and other effects such as blockage. This translates to high loss rate environments for which current protocols are not designed...
In this paper, we propose a novel transport protocol that effectively utilizes available bandwidth and diversity gains provided by heterogeneous, highly lossy paths. Our Multi-Path LOss-Tolerant (MPLOT) protocol can be used to provide significant gains in the goodput of wireless mesh networks, subject to bursty, correlated losses with average loss-rates as high as 50%, and random outage events. MPLOT...
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