An adaptive MAC and idrectional routing protocol for ad hoc wireless network using ESPAR antenna
MobiHoc '01 Proceedings of the 2nd ACM international symposium on Mobile ad hoc networking & computing
Directional virtual carrier sensing for directional antennas in mobile ad hoc networks
Proceedings of the 3rd ACM international symposium on Mobile ad hoc networking & computing
Using directional antennas for medium access control in ad hoc networks
Proceedings of the 8th annual international conference on Mobile computing and networking
MACA-P: A MAC for Concurrent Transmissions in Multi-Hop Wireless Networks
PERCOM '03 Proceedings of the First IEEE International Conference on Pervasive Computing and Communications
How Bad TCP Can Perform In Mobile Ad Hoc Networks
ISCC '02 Proceedings of the Seventh International Symposium on Computers and Communications (ISCC'02)
Enhancing TCP fairness in ad hoc wireless networks using neighborhood RED
Proceedings of the 9th annual international conference on Mobile computing and networking
Design and Analysis of a Cooperative Medium Access Scheme for Wireless Mesh Networks
BROADNETS '04 Proceedings of the First International Conference on Broadband Networks
Overlapped Carrier-Sense Multiple Access (OCSMA) in Wireless Ad Hoc Networks
IEEE Transactions on Mobile Computing
A High-Throughput MAC Protocol for Wireless Ad Hoc Networks
IEEE Transactions on Wireless Communications
The capacity of wireless networks
IEEE Transactions on Information Theory
IEEE Journal on Selected Areas in Communications
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The TCP congestion control mechanism along with unfairness problem poses poor performance when IEEE 802.11 MAC protocol is used in multi-hop ad hoc networks because the traditional TCP has poor interaction with the IEEE 802.11 MAC protocol. Because of the greedy nature of TCP, starvation problem of TCP flows with longer paths is severe. In this paper, we first illustrate that the fairness, congestion control and medium contention are closely coupled issues and the spatial reuse of the channel can improve the performance of wireless ad hoc network. By using concurrent transmission protocol at the MAC layer, like CTMAC, in multi-hop networks we can achieve simultaneous transmissions within the interference regions. Further, we illustrate with extensive simulations in ns-2 that by scheduling multiple concurrent transmissions along the path links, the starvation problem due to greedy nature of TCP can be eliminated and ensuing higher flow throughput and lower end-to-end delay.