Upper bound of loss probability in an OFDMA system with randomly located users

TL;DR

This paper derives an easily computed upper bound on the probability of communication loss in OFDMA systems caused by insufficient sub-channels, considering random user locations and sub-channel allocations.

Contribution

It introduces a novel method using point process theory to estimate loss probability bounds in OFDMA systems with random user positions and resource allocations.

Findings

Provides a practical upper bound for loss probability

Utilizes point process theory for analysis

Simplifies calculations using moments of sub-carrier requirements

Abstract

For OFDMA systems, we find a rough but easily computed upper bound for the probability of loosing communications by insufficient number of sub-channels on downlink. We consider as random the positions of receiving users in the system as well as the number of sub-channels dedicated to each one. We use recent results of the theory of point processes which reduce our calculations to the first and second moments of the total required number of sub-carriers.