Downlink Coordinated Joint Transmission for Mutual Information Accumulation

TL;DR

This paper introduces a novel CoMP technique utilizing mutual information accumulation with rateless codes, significantly improving coverage and data rates in cellular networks, especially for cell edge users.

Contribution

It proposes a new MI accumulation-based CoMP method with rateless codes and quantifies its benefits using stochastic geometry analysis and simulations.

Findings

Enhanced coverage probability and data rates for general users.

Significant improvements at cell edges.

Effective use of rateless codes for MI accumulation.

Abstract

In this letter, we propose a new coordinated multipoint (CoMP) technique based on mutual information (MI) accumulation using rateless codes. Using a stochastic geometry model for the cellular downlink, we quantify the performance enhancements in coverage probability and rate due to MI accumulation. By simulation and analysis, we show that MI accumulation using rateless codes leads to remarkable improvements in coverage and rate for general users and specific cell edge users.