Abstract
In-band full-duplex wireless communication, which supports a node to transmit and receive simultaneously in the same frequency band, is receiving growing interest. The latency of packets in an in-b...
Highlights
The feasibility of In-band full-duplex (IBFD) wireless communication has recently been verified by implementing IBFD systems with wireless open-access research platform (WARP) and universal software radio peripheral (USRP).[7,8]
To increase the opportunity of IBFD access point (AP) to transmit its own packets through the IBFD downlink transmission, an expandable three-way handshaking medium access control (MAC) mechanism is proposed to establish the asymmetric dual link by one channel access, where a new request frame is designed for AP to access the downlink user and response the uplink user
As long as the users in the network succeed in winning the channel and IBFD AP has packets to transmit, the network can carry out asymmetric dual packet transmission
Summary
In-band full-duplex (IBFD) wireless communication technology, which enables nodes to transmit and receive information simultaneously in the same frequency band, can theoretically double its spectral efficiency and increase network throughput.[1,2,3,4,5,6] The feasibility of IBFD wireless communication has recently been verified by implementing IBFD systems with wireless open-access research platform (WARP) and universal software radio peripheral (USRP).[7,8] various problems remain to be solved before IBFD can be applied to mobile terminals,[9,10] as the hardware platform is relatively complex and large sized. While in the WLAN with IBFD AP and HD users, every time an HD user successfully contends the channel and transmits a packet to AP, it can To increase the opportunity of IBFD AP to transmit its own packets through the IBFD downlink transmission, an expandable three-way handshaking MAC mechanism is proposed to establish the asymmetric dual link by one channel access, where a new request frame is designed for AP to access the downlink user and response the uplink user.
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