In wireless communication, Orthogonal Frequency Division Multiplexing (OFDM) has been
adopted due to its robustness to multipath fading and high data rate transmissions. At the …

Many coherent cooperative diversity techniques for wireless relay networks have recently
been suggested to improve the overall system performance in terms of the achievable data …

Orthogonal frequency division multiplexing (OFDM) is a form of multicarrier transmission
technique widely used in the modern wireless network to achieve high-speed data …

Index modulation (IM) techniques have been employed in different communication systems
to improve bandwidth efficiency by carrying additional information bits. In high-mobility …

Multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM)
technological support for the simultaneous and frequent access by a large number of users …

Pilot based least square (LS) channel estimation is a commonly used channel estimation
technique in orthogonal frequency-division multiplexing based systems due to its simplicity …

Luby Transform (LT) code is considered as an efficient erasure fountain code. The
construction of the coded symbols is based on the formation of the degree distribution which …

In this paper, we examine an orthogonal frequency division multiplexing (OFDM) system
under imperfect channel conditions and pilot-aided-based channel estimation. However …

Although the mean square error (MMSE) approach is recognized to be near optimal for
uplinking large-scale multiple-input-multiple-output (MIMO) systems, there are certain …

Massive multiple-input multiple-output (MIMO) improves spectrum efficiency by increasing
the capacity of the wireless structure. Therefore, massive MIMO is promising for fifth …