TY - GEN
T1 - Exploiting CSMA/ECA and adaptive sensitivity control for simultaneous transmit and receive in IEEE 802.11 WLANs
AU - Aijaz, Adnan
AU - Kulkarni, Parag
N1 - Publisher Copyright:
© VDE VERLAG GMBH.
PY - 2019
Y1 - 2019
N2 - 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. With STR mode (FD communication mode) in 802.11 WLANs, bi-directional FD (BFD) and uni-directional FD (UFD) links are created. 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.
AB - 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. With STR mode (FD communication mode) in 802.11 WLANs, bi-directional FD (BFD) and uni-directional FD (UFD) links are created. 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.
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M3 - Conference contribution
AN - SCOPUS:85074447956
T3 - European Wireless 2019 Conference, EW 2019
SP - 120
EP - 127
BT - European Wireless 2019 Conference, EW 2019
PB - VDE VERLAG GMBH
T2 - 25th European Wireless Conference 2019: Wireless Futures in the Era of Network Programmability, EW 2019
Y2 - 2 May 2019 through 4 May 2019
ER -