Packet delay analysis of IEEE 802.11 MAC protocol

Chatzimisios, Periklis; Boucouvalas, Anthony C.; Vitsas, V.

doi:10.1049/el:20030868

Cited by 114 publications

(65 citation statements)

References 3 publications

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“…Bianchi [7] defined a simple mathematical model of the DCF by modeling each node as a Markov Chain and considering the collision probability independent of the backoff stage. This analytical model has been further extended by several authors, for instance, in [8], the analysis is extended to compute the channel access delay. The Homeplug MAC has also been modeled following the Bianchi approach, the most well-know, although complex, analytical model is the one presented and validated in [9].…”

Section: Homeplug and Dcf Random Backoff Proceduresmentioning

confidence: 99%

“…To analytically model the k-ary exponential backoff is straightforward by using the Bianchi [7] and Chatzimisios et al [8] expressions and modifying W i to consider the new increase factor k. The new transmission probability (τ ) and average channel access delay (E[X]) can then be computed as shown in Eqs. 1 and 2, respectively.…”

Section: Dcf With K-ary Exponential Backoffmentioning

confidence: 99%

“…(2) where p denotes the conditional collision probability and α is the average slot duration, refer to [7] and [8] for details.…”

Section: Dcf With K-ary Exponential Backoffmentioning

confidence: 99%

“…When saturated conditions are considered, the mathematical models in [7], [8] and [9] as well as our extension in Eqs. 1 and 2 are used.…”

Section: Performance Evaluationmentioning

confidence: 99%

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Evaluation of the backoff procedure of Homeplug MAC vs. DCF

Cano

Malone

2013

2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)

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Abstract-The standardized Medium Access Control (MAC) protocols for Power Line Communication (PLC) networks (Homeplug and IEEE 1901) are based on the Distributed Coordination Function (DCF) defined for IEEE 802.11. However, the backoff procedure is modified with the goal of decreasing the collision probability. In this work, the backoff procedure of PLC MAC protocols is compared to DCF in different traffic conditions and scenarios, including scenarios with all nodes in coverage range as well as topologies with hidden and exposed terminal problems. The goal is to demonstrate and quantify the pros and cons of each approach in each particular case. Results show that the modified backoff procedure of the Homeplug MAC reduces the collision probability when there is high contention. However, the performance is not always improved compared to DCF. Moreover, when Homeplug provides better performance than the vanilla DCF, we show that the DCF can be easily tuned to achieve similar gains.

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Section: Homeplug and Dcf Random Backoff Proceduresmentioning

confidence: 99%

Section: Dcf With K-ary Exponential Backoffmentioning

confidence: 99%

“…(2) where p denotes the conditional collision probability and α is the average slot duration, refer to [7] and [8] for details.…”

Section: Dcf With K-ary Exponential Backoffmentioning

confidence: 99%

“…When saturated conditions are considered, the mathematical models in [7], [8] and [9] as well as our extension in Eqs. 1 and 2 are used.…”

Section: Performance Evaluationmentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of the backoff procedure of Homeplug MAC vs. DCF

Cano

Malone

2013

2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)

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“…The second access mechanism is an optional four-way handshake technique (RTS-CTS-data-ACK) known as the request to send/clear to send (RTS/CTS) access method [2]. Many analytical models have been produced on the 802.11 MAC layer, and most previous works have analyzed and estimated the delay and throughput of IEEE 802.11 in singlehop wireless networks [2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Linear Approximation Model Throughput Performance Analysis of IEEE 802.11 Distributed Coordinated Function in Wireless Lossy Channel

Abdulghani¹

2018

IJCA

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One source of performance degradation in wireless networks is the frame error that occurs because of nonideal channel conditions. Most previous works assume an ideal transmission channel (i.e., no error in transmission), whereas other works assume that the error is constant and exists only in data packets. These previous works do not consider transmission errors in control frames (i.e., RTS, CTS, and ACK). Therefore, this paper proposes an analytical approximation model to computes the saturation throughput, conditional collision probability, and packet transmission probability, of IEEE 802.11 distributed coordination function (DCF) in the presence of a determinate number of nodes (n) and a wireless noise channel condition. The transmission error that occurs in the data packets and control frames are considered for the computation of the saturation throughput. Furthermore, the effect of network size (n), maximum backoff stage (m), packet length, and minimum backoff window size (W) on the saturation throughput is investigated. The results indicate that the performance of IEEE 802.11 DCF strongly depends on number of nodes, packet length, and BER.

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A novel efficient power‐saving MAC protocol for multi‐hop MANETs

Hwang

Wang

et al. 2011

Int J Communication

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SUMMARY Following recent advances in the performance of ad hoc networks, the limited life of batteries in mobile devices poses a bottleneck in their development. Consequently, how to minimize power consumption in the Medium Access Control (MAC) layer of ad hoc networks is an essential issue. The power‐saving mode (PSM) of IEEE 802.11 involves the Timing Synchronization Function to reduce power consumption for single‐hop mobile ad hoc networks (MANETs). However, the IEEE 802.11 PSM is known to result in unnecessary energy consumption as well as the problems of overheating and back‐off time delay. Hence, this study presents an efficient power‐saving MAC protocol, called p‐MANET, based on a Multi‐hop Time Synchronization Protocol, which involves a hibernation mechanism, a beacon inhibition mechanism, and a low‐latency next‐hop selection mechanism for general‐purpose multi‐hop MANETs. The main purposes of the p‐MANET protocol are to reduce significantly the power consumption and the transmission latency. In the hibernation mechanism, each p‐MANET node needs only to wake up during one out of every N beacon interval, where N is the number of beacon intervals in a cycle. Thus, efficient power consumption is achieved. Furthermore, a beacon inhibition mechanism is proposed to prevent the beacon storm problem that is caused by synchronization and neighbor discovery messages. Finally, the low‐latency next‐hop selection mechanism is designed to yield low transmission latency. Each p‐MANET node is aware of the active beacon intervals of its neighbors by using a hash function, such that it can easily forward packets to a neighbor in active mode or with the least remaining time to wake up. As a consequence, upper‐layer routing protocols can cooperate with p‐MANET to select the next‐hop neighbor with the best forwarding delay. To verify the proposed design and demonstrate the favorable performance of the proposed p‐MANET, we present the theoretical analysis related to p‐MANET and also perform experimental simulations. The numerical results show that p‐MANET reduces power consumption and routing latency and performs well in extending lifetime with a small neighbor discovery time. Copyright © 2011 John Wiley & Sons, Ltd.

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Packet delay analysis of IEEE 802.11 MAC protocol

Cited by 114 publications

References 3 publications

Evaluation of the backoff procedure of Homeplug MAC vs. DCF

Evaluation of the backoff procedure of Homeplug MAC vs. DCF

Linear Approximation Model Throughput Performance Analysis of IEEE 802.11 Distributed Coordinated Function in Wireless Lossy Channel

A novel efficient power‐saving MAC protocol for multi‐hop MANETs

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