Exploiting CSMA/ECA and Adaptive Sensitivity Control for Simultaneous Transmit and Receive in IEEE 802.11 WLANs

04/30/2018
by   Adnan Aijaz, et al.
0

Ever since the feasibility of in-band full-duplex (FD) at the Physical (PHY) layer has been established, several studies have emerged investigating protocol aspects of enabling FD operation in various legacy wireless technologies. Recently, the adoption of a simultaneous transmit and receive (STR) mode for next generation wireless local area networks (WLANs) has received significant attention. Enabling STR mode (FD communication mode) in 802.11 WLANs creates bi-directional FD (BFD) and uni-directional FD (UFD) links. STR mode in 802.11 WLANs must be enabled with minimal protocol modifications while accounting for the co-existence and compatibility with legacy nodes and protocols. This paper provides a novel solution, that can leverage carrier sense multiple access with enhanced collision avoidance (CSMA/ECA) and adaptive sensitivity control mechanisms, for enabling STR operation. The key aspects of the proposed solution include co-existence with legacy nodes, identification of eligible nodes for UFD, optimization of secondary BFD and UFD transmissions, and creation of UFD opportunities. Performance evaluation demonstrates that the proposed solution is effective in achieving the gains provided by STR operation.

READ FULL TEXT

page 1

page 2

page 3

page 4

research
10/16/2017

Adaptive Full Duplex Communications in Cognitive Radio Networks

In this paper we propose a novel adaptive scheme for full duplex communi...
research
01/19/2022

Multi-link Operation in IEEE 802.11be WLANs

The multi-link operation (MLO) is a new feature proposed to be part of t...
research
04/18/2023

Full-Duplex Wireless for 6G: Progress Brings New Opportunities and Challenges

The use of in-band full-duplex (FD) enables nodes to simultaneously tran...
research
05/30/2023

Millimeter Wave Full-Duplex Networks: MAC Design and Throughput Optimization

Full-duplex (FD) technique can remarkably boost the network capacity in ...
research
12/08/2017

Data Aggregation Over Multiple Access Wireless Sensors Network

Data collection in Wireless Sensor Networks (WSN) draws significant atte...
research
09/09/2019

Adaptive Beamwidth Selection for Contention Based Access Periods in Millimeter Wave WLANs

60GHz wireless local area networks (WLANs) standards (e.g., IEEE 802.11a...

Please sign up or login with your details

Forgot password? Click here to reset