Performance Analysis of IEEE 802.11ac DCF with Hidden Nodes

Chang, Zheng; Alanen, Olli; Huovinen, T.; Nihtilä, Timo; Ong, Eng Hwee; Kneckt, Jarkko; Ristaniemi, Tapani

doi:10.1109/vetecs.2012.6240054

Cited by 29 publications

(19 citation statements)

References 6 publications

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“…The new result includes only one integration. It is worth remembering that according to (9), the direct method to find the overall SE requires a (3K + 2)-fold convolution integral.…”

Section: B the Mgf Ofmentioning

confidence: 99%

“…The performance analysis of IEEE 802.11 ac distributed coordination function with hidden nodes has been proposed in [9]. The effect of hidden and exposed nodes on the performance of high throughput mesh networks was introduced in [10], where the authors designed improved channel access mechanisms, utilizing frame aggregation with high throughput wireless standards.…”

Section: Introductionmentioning

confidence: 99%

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Performance Modeling and Analysis of AF Relaying with Hidden Nodes

Alfitouri

Hamdi

2017

2017 IEEE Wireless Communications and Networking Conference (WCNC)

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Abstract-In this paper, we investigate and analyse the performance of amplify and forward (AF) relay system connecting a group of independent sources to their destinations employing a random carrier sense multiple access (CSMA) protocol. The sources are isolated from their destination and the only means for them to communicate with their destination is through the common relay. Sources are arbitrarily distributed around the relay and experience Rayleigh fading channels. This paper develops a new and more accurate model for multiple access interference at both the relay and destination which takes into account random sources location and the effects of fading and thermal noise at both the relay and destination. Moreover, the effect of the hidden nodes on the system performance is considered as a randomly occurring factor. This leads to the derivation of new analytical expressions for the overall spectral efficiency (SE) which can be used to estimate the throughput of the CSMA-based relay in Rayleigh fading channels and to study the impact of the different system parameters on their efficiency. The accuracy of the new mathematical results is confirmed by Monte Carlo simulation.

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“…The new result includes only one integration. It is worth remembering that according to (9), the direct method to find the overall SE requires a (3K + 2)-fold convolution integral.…”

Section: B the Mgf Ofmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance Modeling and Analysis of AF Relaying with Hidden Nodes

Alfitouri

Hamdi

2017

2017 IEEE Wireless Communications and Networking Conference (WCNC)

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“…The claim is that 802.11ac works better in indoor environment because of less interference and high channel quality. Based on [9], the authors of [10] proposed a theoretical model to study the performance of the IEEE 802.11ac distributed coordination function (DCF) of the MAC layer in presence of hidden nodes. The paper concludes that using legacy RTS/CTS handshake mechanism has some shortcomings that need to be addressed to cope with the new 802.11ac features.…”

Section: Background and Related Workmentioning

confidence: 99%

Performance Analysis of IEEE 80.11ac Wireless Local Area Networks

Bourawy¹,

Alokap²

2017

International Journal of Advanced Research in Computer and Comm

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Abstract:The introduction of the IEEE 802.11 standard in late 1990s sparked a whole new promising area in wireless communications, allowing computer users to have untethered access to the Internet. Recently, the IEEE 802.11ac amendment for wireless local area networks (WLANs) has been released that achieves very high throughput (VHT) to approximately 6.933 Gbps. Enhancements to the physical and MAC layers are introduced in the IEEE 802.11ac amendment. These enhancements include exploiting wider channel bandwidths, enhancing modulation and coding schemes, using explicit beamforming, and increasing spatial streams along with the breakthrough of multi-user multiinput multi-output (MU-MIMO). This paper presents a performance analysis in terms of throughput of IEEE 802.11ac. Simulation is conducted to examine different features defined in the 802.11ac amendment. We calculate the aggregate system throughput of several proposed simulation scenarios. Results show that 802.11ac system throughput increases with the enhancement of channel size, modulation schemes, and spatial streams.

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“…Among the most used MAC standards is the IEEE 802.11 standard [25], where it is mainly applied in wireless communications networks. DCF is the primary method of access in the IEEE 802.11 standard [27]. The DCF is a random access mechanism that is based on the Carrier Sense Multiple Access CSMA [28] with collision avoidance.…”

Section: B-probabilistic Channel Modelmentioning

confidence: 99%

A predefined channel coefficients library for Vehicle-to-Vehicle communications

Al-Khalil

Turner

Al-Sherbaz

2015

2015 7th International Workshop on Reliable Networks Design and Modeling (RNDM)

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-It is noticeable that most of VANETs communications tests are assessed through simulation. In a majority of simulation results, the physical layer is often affected by an apparent lack of realism. Therefore, vehicular channel model has become a critical issue in the field of intelligent transport systems (ITS). To overcome the lack of realism problem, a more robust channel model is needed to reflect the reality.

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Performance Analysis of IEEE 802.11ac DCF with Hidden Nodes

Cited by 29 publications

References 6 publications

Performance Modeling and Analysis of AF Relaying with Hidden Nodes

Performance Modeling and Analysis of AF Relaying with Hidden Nodes

Performance Analysis of IEEE 80.11ac Wireless Local Area Networks

A predefined channel coefficients library for Vehicle-to-Vehicle communications

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