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The traditional TCP Reno, TCP Vegas and many other TCP variants used in wire network can not perform well in ad hoc environment. Because ad hoc network usually uses wireless channel and it has not the base station. And more, the ad hoc node can be mobile. The mechanism of detecting congestion by packet losses can not be valid. In ad hoc network, temporary link outages or fading-induced bit errors...
This paper presents delay and throughput performance results for a "cache-and-forward" (CNF) network architecture for mobile content delivery services. The CNF network uses hop-by-hop transport and in-network storage to deliver large media files to mobile users. The CNF protocol is designed to deal with fluctuating wireless link quality and occasional periods of disconnection, and is therefore...
In GPRS, severe jitter due to roughness (impairment) at the air interface between mobile station (MS) and base station (BS) produces adverse impact on the efficiency of the LLC (logical link control) and TCP (transmission control protocol) layers. Natural conditions at the air interface make communication reliability more vulnerable. Here, reliability refers to efficient recovery of the lost or erroneous...
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