Throughput enhancement of IEEE 802.11ad through space‐time division multiple access scheduling of multiple co‐channel networks

Feng, Wei; Niu, Yong; Li, Yong; Gao, Bo; Su, Li; Jin, Depeng; Wu, Dapeng

doi:10.1049/iet-com.2015.0184

Cited by 5 publications

(10 citation statements)

References 22 publications

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“…Now, r is obtained by substituting (14) in (15). The conditional collision probability can be written as…”

Section: Calculation Of Network Throughput During Cbapmentioning

confidence: 99%

“…To compute U CBAP,r analytically, first of all, we need to find r and p c,r . For this, we need to use (3), (6), (14), (15), and (16) together to find the appropriate solution for r and p c,r . Once r and p c,r are known, all other required probability values can be computed for finding the throughput.…”

Section: Calculation Of Network Throughput During Cbapmentioning

confidence: 99%

“…Chandra et al propose a three‐dimensional DTMC model for finding saturation throughput of 802.11ad WLAN in CBAP. Feng proposes a STDMA‐based scheduling scheme among multiple co‐channel PBSSs for throughput improvement in 802.11ad WLAN. Semiari et al propose a modified MAC protocol for dynamically managing WLAN traffic over unlicensed mmWave and sub‐6 GHz bands.…”

Section: Introductionmentioning

confidence: 99%

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Combining contention‐based access and dynamic service period allocation for performance improvement in IEEE 802.11ad mmWave WLAN

Mishra

Babu

2020

Int J Communication

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Summary In IEEE 802.11ad millimeter wave wireless LANs, the directional multi‐giga bit stations (DMGSTAs) use contention‐based access periods (CBAPs) and scheduled service periods (SPs) for medium access. The STAs carrying non‐QoS traffic use CBAPs, while SPs are allocated for STAs carrying high QoS applications. During CBAP, the STAs use enhanced distributed channel access (EDCA) scheme. Further, 802.11ad advocates dynamic allocation of SP for guaranteed data transmission based on a centralized polling scheme. The standard advocates that the coverage area around the access point can be divided into several sectors, and the total CBAP shall be divided among the sectors on a time sharing basis. The STAs residing within a sector simultaneously contend during the CBAP fraction of that sector. However, such STAs have to defer their transmission attempts and wait for the designated CBAP fraction of the succeeding beacon interval (BI), if the residual time in the current CBAP fraction is not sufficient for a frame transmission. This leads to very high delay and reduced throughput. The objective of this paper is to propose an efficient hybrid medium access control scheme, where the deferred STAs during CBAP are scheduled again by utilizing the unallocated slots in the SP of the same BI. We describe an analytical model for the throughput and the average frame delay, under the proposed scheme, and compare the performance against the legacy scheme, where the STAs use CBAP alone for channel access. The analytical and simulation results establish that the proposed scheme significantly improves the throughput and reduces the average frame delay.

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“…Now, r is obtained by substituting (14) in (15). The conditional collision probability can be written as…”

Section: Calculation Of Network Throughput During Cbapmentioning

confidence: 99%

Section: Calculation Of Network Throughput During Cbapmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Combining contention‐based access and dynamic service period allocation for performance improvement in IEEE 802.11ad mmWave WLAN

Mishra

Babu

2020

Int J Communication

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“…The TDMA is widely used in wireless networks, because it provides required capabilities such as hidden node problem solving, bounded delay, energy efficiency and reduction of total system performance impact due to client low rates. All these factors made TDMA one of the key enablers for today wireless systems, even increasing interest in already existing IEEE 802.11ac networks (Feng 2016). The interference for 60 GHz band has lower impact, since typically 60 GHz systems will use high gain directional antennas and most of the interference might occur inside a network.…”

Section: State-of-the-art Advancements In Ieee 80211 Media Access Comentioning

confidence: 99%

Investigation of Media Access Control in Wireless Networks

Cuzanauskas¹

2018

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Vadovas doc. dr. Aurimas ANSKAITIS (Vilniaus Gedimino technikos universitetas, elektros ir elektronikos inžinerija-01T) (2013-2016), prof. dr. Šarunas PAULIKAS (Vilniaus Gedimino technikos universitetas, elektros ir elektronikos inžinerija-01T) (2017-2018). Vilniaus Gedimino technikos universiteto Elektros ir elektronikos inžinerijos mokslo krypties disertacijos gynimo taryba: Pirmininkas prof. dr. Dalius NAVAKAUSKAS (Vilniaus Gedimino technikos universitetas, elektros ir elektronikos inžinerija-01T). Nariai: dr. Rimvydas ALEKSIEJŪNAS (Vilniaus universitetas, fizika-02P), prof. dr. Artūras SERACKIS (Vilniaus Gedimino technikos universitetas, elektros ir elektronikos inžinerija-01T), dr. Szymon SZOTT (Stanislavo Stašico vardo kalnakasybos ir metalurgijos akademija, elektros ir elektronikos inžinerija-01T), doc. dr. Dainius UDRIS (Vilniaus Gedimino technikos universitetas, technologijos mokslai, elektros ir elektronikos inžinerija-01T). Disertacija bus ginama viešame Elektros ir elektronikos inžinerijos mokslo krypties disertacijos gynimo tarybos posėdyje 2018 m. rugpjūčio 27 d. 14 val. Vilniaus Gedimino technikos universiteto senato posėdžių salėje.

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“…Many studies are being carried out in the literature that discusses the various aspects of the 802.11ad networks such as beamforming training analysis, performance analysis of carrier-sense multiple-access/collision avoidance (CSMA/CA) at 60 GHz, dual-band architecture, performance in hospital environments, usage in data center networks, radar, vehicular communications, etc. [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] There are also many works in the literature related to space-time block codes and cross-layer approaches. [27][28][29][30][31][32][33][34][35][36] Two schemes have been mentioned by Gilan and Olfat 27 for removing intersymbol interference in the space-time coding scheme.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of the service periods of IEEE 802.11ad MAC

Hemanth

Venkatesh

2019

Trans Emerging Tel Tech

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Today, we witness an explosion in wireless networks that are accessed by high-performance mobile devices running a wide variety of demanding applications. The IEEE 802.11ad is a standard targeted at meeting these design requirements. Analytical modeling and performance evaluation is a crucial step needed for the evolution of any standard. In this paper, we model the service periods (SPs) of the IEEE 802.11ad hybrid medium access control as a special case of periodically gated queueing system (PGQS) with Bernoulli scheduling. We first state and prove some basic theorems related to the probability generating functions of the PGQS. Using these results, we derive the average delay and the delay variations (jitter) of packets belonging to SP of IEEE 802.11ad. We show that as the arrival rates increases, the delay increases linearly until the critical arrival rate, and beyond that, it becomes unbounded. Further, a practical scheme for the admission control mechanism of 802.11ad is also presented. To validate the model, analytical results are compared with simulation results.Trans Emerging Tel Tech. 2020;31:e3780.wileyonlinelibrary.com/journal/ett

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Throughput enhancement of IEEE 802.11ad through space‐time division multiple access scheduling of multiple co‐channel networks

Cited by 5 publications

References 22 publications

Combining contention‐based access and dynamic service period allocation for performance improvement in IEEE 802.11ad mmWave WLAN

Combining contention‐based access and dynamic service period allocation for performance improvement in IEEE 802.11ad mmWave WLAN

Investigation of Media Access Control in Wireless Networks

Performance analysis of the service periods of IEEE 802.11ad MAC

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