Throughput and Delay Analysis of IEEE 802.11 DCF in the Presence of Hidden Nodes for Multi-hop Wireless Networks

Alabady, Salah Abdulghani; Salleh, Mohd Khairul Mohd; Hasib, Abdul

doi:10.1007/s11277-014-1894-9

Cited by 6 publications

(4 citation statements)

References 14 publications

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“…Similar work can be found in [22], where the authors analyzed the throughput of the IEEE 802.11 protocol in the non-saturated traffic conditions by considering the imperfect channel sensing. The hidden node problem does not eliminate by use the RTS/CTS mechanism in wireless multihop networks [23], [24]. Considering the non-ideal channel and hidden node problems adds complexity to the existing analysis for multihop networks.…”

Section: Iraqi Journal For Electrical and Electronic Engineeringmentioning

confidence: 99%

“…After B sends the RTS_b frame to A, considering C did not hear B, and C sends a RTS_c frame to A simultaneous that A sends a CTS_a frame to node B, as the reqiuest to RTS_b frame. More detials for hidden nodes problems can be found in [24]. In this paper, several additional necessary assumptions are made for the analytical model as follows: i) The RTS/CTS access methoed is applied.…”

Section: Analytical Modelmentioning

confidence: 99%

See 1 more Smart Citation

Saturation Throughput and Delay Performance Evaluation of the IEEE 802.11g/n for a Wireless Lossy Channel

Alabady¹

2018

IJEEE

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Non-ideal channel conditions degrade the performance of wireless networks due to the occurrence of frame errors. Most of the well-known works compute the saturation throughput and packet delay for the IEEE 802.11 Distributed Coordination Function (DCF) protocol with the assumption that transmission is carried out via an ideal channel (i.e., no channel bit errors or hidden stations), and/or the errors exist only in data packets. Besides, there are no considerations for transmission errors in the control frames (i.e., Request to Send (RTS), Clear to Send (CTS), and Acknowledgement (ACK)). Considering the transmission errors in the control frames adds complexity to the existing analysis for the wireless networks. In this paper, an analytical model to evaluate the Medium Access Control (MAC) layer saturation throughput and packet delay of the IEEE 802.11g and IEEE 802.11n protocols in the presence of both collisions and transmission errors in a non-ideal wireless channel is provided. The derived analytical expressions reveal that the saturation throughput and packet delay are affected by the network size (n), packet size, minimum backoff window size (Wmin), maximum backoff stage (m), and bit error rate (BER). These results are important for protocol optimization and network planning in wireless networks.

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Section: Iraqi Journal For Electrical and Electronic Engineeringmentioning

confidence: 99%

Section: Analytical Modelmentioning

confidence: 99%

Saturation Throughput and Delay Performance Evaluation of the IEEE 802.11g/n for a Wireless Lossy Channel

Alabady¹

2018

IJEEE

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“…Researches on wireless networks aim for feasible and cheap broadband internet access, as well as investigation on Quality of Service (QoS) for critical time services systems (such as healthcare and telemedicine, emergency and disaster networking systems) have recently attracted considerable attention. Wireless multi-hop networks, such as wireless mesh networks (WMNs) random topology, are considered an ideal networks field for such services [1] thus; multi-hop wireless networks become necessary for users. However due to the limitation of the transmission range of wireless network interfaces, multiple hops are needed to extend range and exchange data between stations in the network and the IEEE 802.11 standard is widely applied in multi-hop wireless networks [2,3].…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of the IEEE 802.11n random topology WLAN with QoS application

Farej

Jasim

2020

IJECE

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The IEEE 802.11n supports high data rate transmissions due its physical layer Multiple Input ‎Multiple Output (MIMO) advanced antenna system and MAC layer enhancement features (frame ‎aggregation and block acknowledgement). As a result this standard is very suitable for multimedia ‎services through its Enhanced Distributed Channel Access (EDCA). This paper focuses on ‎evaluating the Quality of Service (QoS) application on the performance of the IEEE 802.11n ‎random topology WLAN. Three different number of nodes (3, 9 and 18) random topology with one ‎access point are modeled and simulated by using the Riverbed OPNET 17.5 Modular to ‎investigate the Wireless Local Area Network (WLAN) performance for different spatial streams. ‎The result clarified the impact of QoS application and showed that its effect is best at the 18 node ‎number topology. For a 4x4 MIMO, when QoS is applied and with respect to the no QoS ‎application case, simulation results show a maximum improvement of 86.4%, 33.9%, 52.2% and ‎‎68.9% for throughput, delay, data drop and retransmission attempts, respectively. ‎

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“…Since the DCF (Distributed Coordination Function) protocol was introduced for the fundamental MAC (MeWoo-Yong Choi3 Access Control) access mechanism for IEEE 802.11 wireless LANs in 1997, the DCF protocol has been the primary MAC protocol for wireless LANs [1][2][3]. However, because the DCF protocol depends on the exponential back-off mechanism, it suffers from the exponential MAC performance degradation as more nodes exist in a wireless LAN [4,5].…”

Section: Introductionmentioning

confidence: 99%

Asymptotic performance modelling of DCF protocol with prioritized channel access

Choi

2017

Journal of Electrical Engineering

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Recently, the modification of the DCF (Distributed Coordination Function) protocol by the prioritized channel access was proposed to resolve the problem that the DCF performance worsens exponentially as more nodes exist in IEEE 802.11 wireless LANs. In this paper, an asymptotic analytical performance model is presented to analyze the MAC performance of the DCF protocol with the prioritized channel access.

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Throughput and Delay Analysis of IEEE 802.11 DCF in the Presence of Hidden Nodes for Multi-hop Wireless Networks

Cited by 6 publications

References 14 publications

Saturation Throughput and Delay Performance Evaluation of the IEEE 802.11g/n for a Wireless Lossy Channel

Saturation Throughput and Delay Performance Evaluation of the IEEE 802.11g/n for a Wireless Lossy Channel

Performance evaluation of the IEEE 802.11n random topology WLAN with QoS application

Asymptotic performance modelling of DCF protocol with prioritized channel access

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