Designing Two-Dimensional Complete Complementary Codes for Omnidirectional Transmission in Massive MIMO Systems

TL;DR

This paper introduces a novel method for constructing two-dimensional complete complementary codes using 2D generalized Boolean functions, enhancing omnidirectional transmission in massive MIMO systems.

Contribution

It proposes a direct synthesis approach for 2D CCCs using generalized Boolean functions, addressing the lack of efficient systematic constructions for 2D codes.

Findings

Proposed 2D CCCs are effective as precoding matrices.

Simulation results demonstrate improved omnidirectional coverage.

The method outperforms traditional recursive constructions.

Abstract

This paper presents an efficient construction of two-dimensional (2D) complete complementary codes (CCCs) for their modern application as omnidirectional precoding matrices in massive MIMO systems to attain enhanced cell coverage. Unlike the traditional 1D CCCs, little progress has been made on efficient and systematic constructions of the 2D counterpart. In contrast to the existing recursive constructions with the aid of various sequence operations, certain 1D seed sequences or 2D arrays, we propose to use 2D generalized Boolean functions for direct synthesis of 2D CCCs. Simulation results show that the proposed 2D CCCs appear to be good candidates for precoding matrices to achieve omnidirectional transmission in massive MIMO systems.