Vimal Bhatia

TL;DR: In present and future communication systems, the power amplifier is a key component at the transmitter, which leads to nonlinear distortion (NLD), which is expected to increase in future fifth-generation (5G) communication networks, due to the use of large bandwidth at millimeter-wave (mmW) frequencies.

TL;DR: Analytical lower bound expressions of average symbol error rate (ASER) for general-order hexagonal quadrature amplitude modulation (QAM) and rectangular QAM and RQAM schemes are derived for multiple amplify-and-forward relay networks over independent and nonidentically distributed Nakagami-type fading channels with an integer-valued fading parameter using a well-known cumulative-distribution-function-based approach.

TL;DR: A detailed comparative study of various modulation schemes is presented and the impact of pointing error, atmospheric turbulence, outdated CSI, and Nakagami-m parameter are highlighted on the system performance.

TL;DR: In this paper, the key challenges associated with constraints on network design and deployment to be addressed for providing broadband connectivity to rural areas, and proposes novel approaches and solutions for bridging the digital divide in those regions.

TL;DR: A congestion control based ant colony optimization (CC-ACO) algorithm for large MIMO detection is proposed and the robustness of the proposed algorithm under channel state information (CSI) estimation error is discussed.