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Distributed directional cooperative MAC (DD-CoopMAC) protocol for improving VBR throughput in IEEE 802.11ad WLAN

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Abstract

The IEEE 802.11ad-based wireless local area network (WLAN) has emerged out as a promising network technology that is capable of operating on millimetre wave spectrum. This network is being used in many applications and can be extended to serve many different streams of the networking industry. However, the network still has some glitches with respect to throughput, overhead, etc., which need to be handled to make it more reliable and efficient. In this paper, distributed directional cooperative medium access control (DD-CoopMAC) protocol for improving variable bit rate (VBR) throughput in IEEE 802.11ad WLAN is proposed. In this protocol, information about network stations is intelligently collected; based on this, the relay stations are selected for transmission. Simulation results illustrate that this protocol aids in enhancing the throughput and reducing the related overhead. Also, simulation results show that the proposed DD-CoopMAC has given high throughput and less MAC delay compared with D-CoopMAC and IEEE 802.11ad.

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Abbreviations

SSW:

Sector sweep

S1 :

STA performing responder SSW

S2, S3, S4 :

Stations surrounding S1

CU k :

Utilization for channel k

DR HL :

Data rate of two-hop link d

µ 1, µ 2 :

Weight values ranging in [0, 1]

CWF :

Combined weight factor

P suc :

Probability of successful transmission

P idle :

Probability of slots being idle

T idle :

Duration of idle time slot

T suc :

Duration of successful transmission

P col :

Probability of collision

T col :

Duration of failed transmission

E[P]:

Average duration of a payload packet

UF :

Utility function

STArelay :

Relay station

PDT and PLR :

Packet delivery time and packet loss ratio

α, β :

Predefined constants

STAup :

STA performing uplink transmission

STAtab(i) :

STAs included in the table

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Correspondence to Ilayaraja Venkatachalam.

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Venkatachalam, I., Palaniappan, S. & Ameer John, S. Distributed directional cooperative MAC (DD-CoopMAC) protocol for improving VBR throughput in IEEE 802.11ad WLAN. Sādhanā 45, 245 (2020). https://doi.org/10.1007/s12046-020-01481-4

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  • DOI: https://doi.org/10.1007/s12046-020-01481-4

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