Interference-Aware Offloading of Deadline-Constrained Traffic in High Density Cellular Systems

Ahmed Ewaisha, Cihan Tepedelenlioglu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We consider one non-real-time (NRT) and N realtime (RT) cellular users interested in downloading delay-tolerant and delay-sensitive packets from the base station (BS), respectively. Each RT packet is a multicast packet and RT user i is satisfied if more than qi% of the data is received before the deadline. At each slot, one of the RT users is allowed to retransmit the data it has received from the BS to its RT neighbors. This reduces the load on the BS but causes interference to the NRT user. The problem is formulated as a joint scheduling and rate-allocation problem. We present a throughput-optimal algorithm that maximizes the NRT rate in this system under interference. Our simulations show that, in high density networks, increasing the number of RT users N in the system improves the NRT user's throughput due to the multi-user diversity effect. We also show that, in low density networks, the throughput is maximized at an optimal value of N.

Original languageEnglish (US)
Title of host publicationConference Record - 53rd Asilomar Conference on Circuits, Systems and Computers, ACSSC 2019
EditorsMichael B. Matthews
PublisherIEEE Computer Society
Pages1842-1846
Number of pages5
ISBN (Electronic)9781728143002
DOIs
StatePublished - Nov 2019
Event53rd Asilomar Conference on Circuits, Systems and Computers, ACSSC 2019 - Pacific Grove, United States
Duration: Nov 3 2019Nov 6 2019

Publication series

NameConference Record - Asilomar Conference on Signals, Systems and Computers
Volume2019-November
ISSN (Print)1058-6393

Conference

Conference53rd Asilomar Conference on Circuits, Systems and Computers, ACSSC 2019
CountryUnited States
CityPacific Grove
Period11/3/1911/6/19

ASJC Scopus subject areas

  • Signal Processing
  • Computer Networks and Communications

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