A Survey of TCP Optimizations for Wireless Channels
نویسنده
چکیده
The use of wireless links causes several problems for TCP connections. Among them are high loss rates, high delay latency, high delay jitter, reverse path contention, dynamic link capacity, and link capacity dependent on transmission rate. These problems can be ameliorated through the use of modifications to TCP, with or without support from a router in the network. Solutions fall into two general categories: modifications which utilize an intermediate router with or without breaking the end-to-end semantics of TCP, and modifications which do not rely on any cooperation from routers. Solutions which utilize an intermediate router generally are more effective because they do not need to guess whether losses were caused by congestion or corruption. However such solutions are more costly and difficult to deploy and may break the end-to-end semantics of TCP. In general, modifications to TCP must be carefully crafted so that they remain fair to legacy TCP implementations.
منابع مشابه
A Survey on Multicast Routing Approaches in Wireless Mesh Networks
Wireless mesh networks (WMNs) which mediates the broadband Internet access, have been recently received many attentions by the researchers. In order to increase capacity in these networks, nodes are equipped with multiple radios tuned on multiple channels emerging multi radio multi-channel WMNs (MRMC WMNs). Therefore, a vital challenge that poses in MRMC WMNs is how to properly assign channels ...
متن کاملMulti-channel Medium Access Control Protocols for Wireless Sensor Networks: A Survey
Extensive researches on Wireless Sensor Networks (WSNs) have been performed and many techniques have been developed for the data link (MAC) layer. Most of them assume single-channel MAC protocols. In the usual dense deployment of the sensor networks, single-channel MAC protocols may be deficient because of radio collisions and limited bandwidth. Hence, using multiple channels can significantly ...
متن کاملDesign of a Low-Latency Router Based on Virtual Output Queuing and Bypass Channels for Wireless Network-on-Chip
Wireless network-on-chip (WiNoC) is considered as a novel approach for designing future multi-core systems. In WiNoCs, wireless routers (WRs) utilize high-bandwidth wireless links to reduce the transmission delay between the long distance nodes. When the network traffic loads increase, a large number of packets will be sent into the wired and wireless links and can...
متن کاملTCP Performance Optimizations for Wireless Sensor Networks
Since the appearance of downsized and simplified TCP/IP stacks, single nodes from Wireless Sensor Networks (WSNs) have become directly accessible from the Internet with commonly used networking tools and applications (e.g., Telnet or SMTP). However, TCP has been shown to perform poorly in wireless networks, especially across multiple wireless hops. This paper examines TCP performance optimizati...
متن کاملImproving Bandwidth-power Efficiency of Homogeneous Wireless Networks Using On-meet Threshold Strategy (RESEARCH NOTE)
Over two decades, a problem of location dependent has been focused for improving the communication Bandwidth-Power Efficiency of homogeneous networks. The efficiencies of communication links are weakened by the Hidden Terminal Problem. Thus we propose a Fine – Tune Strategy for analyzing the On-Off communication region. We were observed that the proposed technique had been able to track and mo...
متن کامل