Multiple access protocols: performance and analysis
Multiple access protocols: performance and analysis
MACAW: a media access protocol for wireless LAN's
SIGCOMM '94 Proceedings of the conference on Communications architectures, protocols and applications
Floor acquisition multiple access (FAMA) for packet-radio networks
SIGCOMM '95 Proceedings of the conference on Applications, technologies, architectures, and protocols for computer communication
Pertrubations: theory and methods
Pertrubations: theory and methods
Multiuser Detection
A power control MAC protocol for ad hoc networks
Proceedings of the 8th annual international conference on Mobile computing and networking
Intelligent medium access for mobile ad hoc networks with busy tones and power control
IEEE Journal on Selected Areas in Communications
Modeling media access in embedded two-flow topologies of multi-hop wireless networks
Proceedings of the 11th annual international conference on Mobile computing and networking
Performance of wireless networks with hidden nodes: a queuing-theoretic analysis
Computer Communications
Modeling IEEE 802.11 in mesh networks
ITC20'07 Proceedings of the 20th international teletraffic conference on Managing traffic performance in converged networks
Collision and Fade Localization within Packets for Wireless LANs
Wireless Personal Communications: An International Journal
A route-aware MAC for wireless multihop networks with a convergecast traffic pattern
Computer Networks: The International Journal of Computer and Telecommunications Networking
Circularity-Based medium access control in mobile ad hoc networks
ADHOC-NOW'06 Proceedings of the 5th international conference on Ad-Hoc, Mobile, and Wireless Networks
Collision Localization for IEEE 802.11 Wireless LANs
Wireless Personal Communications: An International Journal
On the behavior of broadcasting protocols for MANETs under omission faults scenarios
LADC'07 Proceedings of the Third Latin-American conference on Dependable Computing
On the feasibility of completely wireless datacenters
Proceedings of the eighth ACM/IEEE symposium on Architectures for networking and communications systems
Fair packet scheduling in Wireless Mesh Networks
Ad Hoc Networks
On the feasibility of completely wirelesss datacenters
IEEE/ACM Transactions on Networking (TON)
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IEEE 802.11 wireless networks employ the so-called RTS/CTS mechanism in order to avoid DATA packet collisions. The main design assumption is that all the nodes in the vicinity of a sender and a receiver will hear the RTS or CTS packets, and defer their transmission appropriately. This assumption happens to not hold, in general, even under perfect operating conditions. Often, neighboring nodes are "masked驴 by other ongoing transmissions nearby and, hence, are unable to receive the RTS or CTS packets correctly. We refer to such nodes as masked nodes. In this paper, we describe the masked node problem and show scenarios leading to DATA packet collisions. We evaluate the impact of masked nodes through mathematical analysis and real experiments on a small IEEE 802.11 ad hoc network. The analytical and experimental data closely match and reveal that the presence of a masked node in a network can result in an order of magnitude increase in DATA packet loss compared to a network without masked nodes. These results are further validated by extensive simulations on a large-scale network, which show that masked nodes also significantly affect delay and throughput performance. Therefore, masked nodes severely limit the effectiveness of the RTS/CTS mechanism in preventing performance degradation in wireless LANs.