RTS/CTS-induced congestion in ad hoc wireless LANs

Ray, S. Saha; Carruthers, Jeffrey B.; Starobinski, David

doi:10.1109/wcnc.2003.1200611

Cited by 109 publications

(90 citation statements)

References 6 publications

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“…WLAN standard IEEE 802.11 contains RTS/CTS protocols to control clients access to shared-medium according to configured threshold [5,6]. In fact, WLAN for open access/hotspot (e.g.…”

Section: Wlan Operation and Performance Issuesmentioning

confidence: 99%

“…Practically, these sockets on the client's device enable timing packets transmission after making first a request (RTS frame sent) and receiving reply (CTS frame received) from a peer network node [2,3]. They are used as an optional technique [4] in wireless LAN legacy (IEEE 802.11) for transmission control between clients and the access-point (AP) [2,4]; they are so known also as best tools in negotiating or ensuring bandwidth [2,4,6] prior for a client transmitting its data.…”

Section: Introductionmentioning

confidence: 99%

“…In fact, this remark is made relatively to the RTS/CTS potential capability for the same task of controlling clients transmission to avoid collision occurrence [6]. In other words, RTS/CTS efficiency is subject to the use with each of WLAN operation modes (i.e.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

RTS/CTS Framework Paradigm and WLAN Qos Provisioning Methods

Nj.¹,

Sahib²,

Suryana³

et al. 2017

ijacsa

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Abstract-Wirelesslocal area network (WLAN) communications performance design and management have evolved a lot to be where they are today. They went through some technology's amendments and innovations. But, some performance tools remained almost unchanged and play a fundamental role in contemporary networking solutions despite the latest innovations higher influence on their indisputable and important function. That is the case with Request to send (RTS) and consent to receive (CTS) protocols. They are among the former technologies, which helped for transmission control with better performance in WLAN environment. They are so important, particularly since the advent of sensitive data networking (e.g. internet telephony, audio and video materials distribution) over the internet protocol (IP). Up to recent years following today's multimedia WLAN based networks deployment trends, RTS/CTS) contributed to provide networks with some expected good performance levels prior to the discovery of more sophisticated methods for this purpose (i.e. performance enhancements). And yet, one may question whether the new technologies have rendered RTS/CTS frameworks obsolete; or are they now used only for some specific network applications traffic management? This articles review attempts to comprehensibly study some of the research works, which have had interest in RTS/CTS mechanism as tools for WLAN applications performance support. Various researches have studied these tools from their early innovation as network node's built-in component, through different frameworks associated with WLAN legacy (IEEE 802.11) MAC protocols. This paper analyzed RTS/CTS initial implementation as mere network performance solution from packets' collision avoidance perspective; and then for transmission delay due to hidden nodes and their false deployment. The article closes up on a critical analysis on the possible long time contribution of these protocols into integrated schemes based WLAN QoS performance design.

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“…WLAN standard IEEE 802.11 contains RTS/CTS protocols to control clients access to shared-medium according to configured threshold [5,6]. In fact, WLAN for open access/hotspot (e.g.…”

Section: Wlan Operation and Performance Issuesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

RTS/CTS Framework Paradigm and WLAN Qos Provisioning Methods

Nj.¹,

Sahib²,

Suryana³

et al. 2017

ijacsa

View full text Add to dashboard Cite

show abstract

“…When the 802.11 MAC layer approaches saturation, contention delays induced by deferred count-down timers, an increased contention window and retransmissions affecting the performance of TFRC and TCP [16]. TFRC is unaware of the MAC layer congestion, rendering in that the TFRC sender may overestimate the maximum sending rate.…”

Section: Trends In Telecommunications Technologies 114mentioning

confidence: 99%

Adaptive Active Queue Management for TCP Friendly Rate Control (TFRC) Traffic in Heterogeneous Networks

Rahmani¹,

Åhlund²

2010

Trends in Telecommunications Technologies

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“…As the exposed nodes receive RTS from the sender, they must hold their transmissions. This allows the sender to receive CTS and ACK from the receiver without collisions, during this time the exposed nodes cannot transmit to any other nodes during that network allocation vector (NAV) period defined in the RTS frame, and their throughput degrades substantially [3,4]. Holding transmission for the entire NAV period is an unnecessarily large penalty because when the sender is in transmission mode it cannot receive anything from the exposed nodes.…”

Section: Introductionmentioning

confidence: 99%

Asymmetric RTS/CTS for Exposed Node Reduction in IEEE 802.11 Ad Hoc Networks

Matoba

Hanada

Kanemitsu

et al. 2014

Journal of Computing Science and Engineering

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One interesting problem regarding wireless local area network (WLAN) ad-hoc networks is the effective mitigation of hidden nodes. The WLAN standard IEEE 802.11 provides request to send/clear to send (RTS/CTS) as mitigation for the hidden node problem; however, this causes the exposed node problem. The first 802.11 standard provided only two transmission rates, 1 and 2 Mbps, and control frames, such as RTS/CTS assumed to be sent at 1 Mbps. The 802.11 standard has been enhanced several times since then and now it supports multi-rate transmission up to 65 Mbps in the currently popular 802.11n (20 MHz channel, single stream with long guard interval). As a result, the difference in transmission rates and coverages between the data frame and control frame can be very large. However adjusting the RTS/CTS transmission rate to optimize network throughput has not been well investigated. In this paper, we propose a method to decrease the number of exposed nodes by increasing the RTS transmission rate to decrease RTS coverage. Our proposed method, Asymmetric Range by Multi-Rate Control (ARMRC), can decrease or even completely eliminate exposed nodes and improve the entire network throughput. Experimental results by simulation show that the network throughput in the proposed method is higher by 20% to 50% under certain conditions, and the proposed method is found to be effective in equalizing dispersion of throughput among nodes.

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RTS/CTS-induced congestion in ad hoc wireless LANs

Cited by 109 publications

References 6 publications

RTS/CTS Framework Paradigm and WLAN Qos Provisioning Methods

RTS/CTS Framework Paradigm and WLAN Qos Provisioning Methods

Adaptive Active Queue Management for TCP Friendly Rate Control (TFRC) Traffic in Heterogeneous Networks

Asymmetric RTS/CTS for Exposed Node Reduction in IEEE 802.11 Ad Hoc Networks

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