The search functionality is under construction.
The search functionality is under construction.

Sequence-Based Schemes for Broadcast and Unicast under Frequency Division Duplex

Fang LIU, Kenneth W. SHUM, Yijin ZHANG, Wing Shing WONG

  • Full Text Views

    0

  • Cite this

Summary :

We consider all-to-all broadcast and unicast among nodes in a multi-channel single-hop ad hoc network, with no time synchronization. Motivated by the hard delay requirement for ultra-reliable and low-latency communication (URLLC) in 5G wireless networks, we aim at designing medium access control (MAC) schemes to guarantee successful node-to-node transmission within a bounded delay. To provide a hard guarantee on the transmission delay, deterministic sequence schemes are preferred to probabilistic schemes such as carrier sense multiple access (CSMA). Therefore, we mainly consider sequence schemes, with the goal to design schedule sequence set to guarantee successful broadcast/unicast within a common sequence period. This period should be as short as possible since it determines an upper bound on the transmission delay. In previous works, we have considered sequence design under time division duplex (TDD). In this paper, we focus on another common duplex mode, frequency division duplex (FDD). For the FDD case, we present a lower bound on period of feasible sequence sets, and propose a sequence construction method by which the sequence period can achieve the same order as the lower bound, for both broadcast and unicast models. We also compare the sequence length for FDD with that for TDD.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E104-A No.2 pp.376-383
Publication Date
2021/02/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.2020SDI0001
Type of Manuscript
Special Section INVITED PAPER (Special Section on Signal Design and Its Applications in Communications)
Category
Communication Theory and Signals

Authors

Fang LIU
  The Chinese University of Hong Kong
Kenneth W. SHUM
  The Chinese University of Hong Kong (Shenzhen)
Yijin ZHANG
  Nanjing University of Science and Technology
Wing Shing WONG
  The Chinese University of Hong Kong

Keyword