Results 1 - 10 of 327,913

802.11 Mesh Networks with Two RadioAccess Points

by Jing Zhu, Sumit Roy - In: Proceedings of the IEEE International Conference on Communications (ICC), Seoul, Korea , 2005
"... Abstract — In this future-looking work, we propose a mesh (multi-hop) architecture based on two-radio.11 Access Points (AP) and examine achievable aggregate throughput by exploiting spatial reuse and multiple channels. A suitable distributed clustering is used to self-organize the network for channe ..."
Abstract - Cited by 19 (1 self) - Add to MetaCart
Abstract — In this future-looking work, we propose a mesh (multi-hop) architecture based on two-radio.11 Access Points (AP) and examine achievable aggregate throughput by exploiting spatial reuse and multiple channels. A suitable distributed clustering is used to self-organize the network

Link-level Measurements from an 802.11b Mesh Network

by Daniel Aguayo, John Bicket, Sanjit Biswas, Glenn Judd, Robert Morris - In SIGCOMM , 2004
"... This paper anal yzes the causes of packetl oss in a 38-node urban mul ti-hop 802.11b network. The patterns and causes oflv# are important in the design of routing and errorcorrection proto colv as wel as in networkplqq"(v The paper makes the fol l owing observations. The distribution of inter-n ..."
Abstract - Cited by 565 (11 self) - Add to MetaCart
This paper anal yzes the causes of packetl oss in a 38-node urban mul ti-hop 802.11b network. The patterns and causes oflv# are important in the design of routing and errorcorrection proto colv as wel as in networkplqq"(v The paper makes the fol l owing observations. The distribution of inter

Performance Anomaly of 802.11b

by Martin Heusse, Franck Rousseau, Gilles Berger-sabbatel, Andrzej Duda - In IEEE INFOCOM , 2003
"... Abstract — We analyze the performance of the IEEE 802.11b wireless local area networks. We have observed that when some mobile hosts use a lower bit rate than the others, the performance of all hosts is considerably degraded. Such a situation is a common case in wireless local area networks in which ..."
Abstract - Cited by 419 (11 self) - Add to MetaCart
in which a host far away from an Access Point is subject to important signal fading and interference. To cope with this problem, the host changes its modulation type, which degrades its bit rate to some lower value. Typically, 802.11b products degrade the bit rate from 11 Mb/s to 5.5, 2, or 1 Mb/s when

Maximizing Aggregate Throughput in 802.11 Mesh Networks with Physical Carrier Sensing and Two-Radio Multi-Channel Clustering

by W. Steven Conner {zhuj
"... Abstract — Spatial reuse in a mesh network allows multiple communications to proceed simultaneously, hence proportionally improving the overall network throughput. To maximize spatial reuse, the MAC protocol must enable simultaneous cochannel transmitters to maintain a separation distance that is su ..."
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devices through the common default radio. Simulation results for large-scale 802.11b and 802.11a networks demonstrate the significant improvement in one-hop aggregate throughput. Specifically, the new two-radio multi-channel mesh solution increases the aggregate throughput by more than twice w

Intercepting Mobile Communications: The Insecurity of 802.11

by Nikita Borisov, Ian Goldberg, David Wagner , 2001
"... The 802.11 standard for wireless networks includes a Wired Equivalent Privacy (WEP) protocol, used to protect link-layer communications from eavesdropping and other attacks. We have discovered several serious security flaws in the protocol, stemming from misapplication of cryptographic primitives. T ..."
Abstract - Cited by 438 (2 self) - Add to MetaCart
The 802.11 standard for wireless networks includes a Wired Equivalent Privacy (WEP) protocol, used to protect link-layer communications from eavesdropping and other attacks. We have discovered several serious security flaws in the protocol, stemming from misapplication of cryptographic primitives

802.11 Mesh Networks

by Katrina L. Lacurts, Hari Balakrishnan, Katrina L. Lacurts , 2010
"... Computer Science Despite many years of work in wireless mesh networks built using 802.11 radios, the performance and behavior of these networks in the wild is not well understood. This is primarily due to a lack of access to data from a wide range of these networks; most researchers have access to o ..."
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Computer Science Despite many years of work in wireless mesh networks built using 802.11 radios, the performance and behavior of these networks in the wild is not well understood. This is primarily due to a lack of access to data from a wide range of these networks; most researchers have access

Wireless mesh networks: a survey

by Ian F. Akyildiz, Xudong Wang, Weilin Wang - COMPUTER NETWORKS , 2005
"... Wireless meshnet8Ex8 (WMNs)consist of meshrout6L and meshclient8 where meshroutfix have minimal mobilit and formtr backbone of WMNs. They provide netide access for bot mesh andconvent1)fi8 clientt TheintL gratLfl of WMNs wit ot8 net8866 such as t1Int6fiPx1 cellular, IEEE 802.11, IEEE 802.15, IEEE 8 ..."
Abstract - Cited by 658 (12 self) - Add to MetaCart
Wireless meshnet8Ex8 (WMNs)consist of meshrout6L and meshclient8 where meshroutfix have minimal mobilit and formtr backbone of WMNs. They provide netide access for bot mesh andconvent1)fi8 clientt TheintL gratLfl of WMNs wit ot8 net8866 such as t1Int6fiPx1 cellular, IEEE 802.11, IEEE 802.15, IEEE

Dynamic Tuning of the IEEE 802.11 Protocol to Achieve a Theoretical Throughput Limit

by Frederico Calì, Marco Conti, Enrico Gregori - IEEE/ACM TRANSACTIONS ON NETWORKING , 2000
"... In wireless LANs (WLANs), the medium access control (MAC) protocol is the main element that determines the efficiency in sharing the limited communication bandwidth of the wireless channel. In this paper we focus on the efficiency of the IEEE 802.11 standard for WLANs. Specifically, we analytically ..."
Abstract - Cited by 434 (12 self) - Add to MetaCart
In wireless LANs (WLANs), the medium access control (MAC) protocol is the main element that determines the efficiency in sharing the limited communication bandwidth of the wireless channel. In this paper we focus on the efficiency of the IEEE 802.11 standard for WLANs. Specifically, we

SSCH: Slotted Seeded Channel Hopping for Capacity Improvement in IEEE 802.11 Ad-Hoc Wireless Networks

by Paramvir Bahl, Ranveer Chandra - in IEEE 802.11 Ad-Hoc Wireless Networks,” in ACM Mobicom , 2004
"... Capacity improvement is one of the principal challenges in wireless networking. We present a link-layer protocol called Slotted Seeded Channel Hopping, or SSCH, that increases the capacity of an IEEE 802.11 network by utilizing frequency diversity. SSCH can be implemented in software over an IEEE 80 ..."
Abstract - Cited by 346 (3 self) - Add to MetaCart
Capacity improvement is one of the principal challenges in wireless networking. We present a link-layer protocol called Slotted Seeded Channel Hopping, or SSCH, that increases the capacity of an IEEE 802.11 network by utilizing frequency diversity. SSCH can be implemented in software over an IEEE

Architecture and Evaluation of an Unplanned 802.11b Mesh Network

by John Bicket, Daniel Aguayo, Sanjit Biswas, Robert Morris , 2005
"... This paper evaluates the ability of a wireless mesh architecture to provide high performance Internet access while demanding little deployment planning or operational management. The architecture considered in this paper has unplanned node placement (rather than planned topology), omni-directional a ..."
Abstract - Cited by 329 (1 self) - Add to MetaCart
this unplanned mesh architecture with a case study of the Roofnet 802.11b mesh network. Roofnet consists of 37 nodes spread over four square kilometers of an urban area. The network provides users with usable performance despite lack of planning: the average inter-node throughput is 627 kbits/second, even though
Results 1 - 10 of 327,913