Energy and area spectral efficiency trade-off for MC-CDMA with carrier frequency offset

Abstract

Intercell interference is a major factor that limits the capacity of cellular wireless communication systems. This paper proposes an accurate statistical model that caters to interference and noise to determine the ergodic capacity.A new expression for ergodic capacity is derived that enables us to calculate area spectral efficiency (ASE) and energy efficiency (EE). This expression has been used to calculate and compare ASE and EE for low and high traffic scenarios with various signal-to-noise ratios and intercell distances.

Ergodic Capacity of D2D Underlay Communication using MC-CDMA

“…In this section we provide simulation results to validate the analysis. Monte Carlo method was used to validate the lower bound to ergodic capacity expression in (15), where SINR is given in (10). Simulation parameters are given in Tab.…”

“…Furthermore, the spread spectrum signal of the D2D pairs inherently has high tolerance to narrow band interference caused by the cellular users [12] so that complicated resource allocation techniques for interference mitigation are not required. As such, the spread spectrum techniques require little or no control signaling for coordination and are therefore simpler to implement [13][14][15].…”