Queueing and channel access delay analysis in in-band full-duplex wireless networks

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-band full-duplex wireless network can be significantly lowered by employing effective medium access control. However, queue delay is not considered in current delay performance analysis works, which do not describe the delay of a packet from generation to reception or analyze the ability to support real-time traffic. In this article, an easily expandable three-way handshaking in-band full-duplex medium access control mechanism is proposed, and both queueing delay and access delay are analyzed. Based on an M/ G/1 queuing model, the system delay of in-band full-duplex access point from the packet coming to the queue, to its successful reception by the destination user, is provided. Simulation results show that compared with half-duplex access point, in-band full-duplex access point performs excellent low latency.

Dynamic Power Management Model for a Wireless Sensor Node

“…The delays of candidate routes from sensor nodes to sink nodes were evaluated by the team using queuing theory. Sun et al [26] investigated the M/G/1 queuing theory, and proposed a three-way handshaking in-band full-duplex medium access control (MAC) mechanism. The obtained results show that the full duplex access point outperforms the half-duplex access point.…”

A Microwave Photonic 2 × 2 IBFD–MIMO Communication System with Narrowband Self-Interference Cancellation

“…Meanwhile, the inherent doubled spectral efficiency of IBFD technology can further optimize the capacity advantage of MIMO systems. Moreover, IBFD technology can reduce the delay of MIMO communication systems, which is helpful for delay-sensitive applications such as real-time communication [4]. The integration of these two technologies enhances the flexibility of the communication system, facilitating superior adaptation to diverse communication environments and network conditions, consequently enhancing the user experience.…”