Performances of adaptive modulation and coding in satellite mobile channel

Abstract

Given that satellite mobile channel is a time-varying channel, Adaptive Modulation and Coding (AMC) was proposed to provide robust and spectrally efficient transmission over satellite mobile channel. Three different kinds of channel environment were considered in this paper: the urban area, the rural area, and the open space. Four combinations of modulation and coding were designed to meet reliable communication on time-varying channel, and spectral efficiency and system throughput of these three kinds of channel environment were simulated. Based on the simulation results, this paper analysed the results and compared the performances of AMC with non-AMC system in these three kinds of channel environment. At last, we come to the conclusions: a system with AMC can achieve higher spectral efficiency and better system throughput; and the spectral efficiency and system throughput of AMC system will be higher on better satellite mobile channel.

Cognitive decision engine based on binary particles swarm optimization with non‐linear decreasing inertia weight

“…In the work of Khanesar et al, 20 the authors proposed a cognitive decision engine that combines a binary quantum particle swarm optimization algorithm with the CRs, but this algorithm converges too slowly, and the optimization takes a long time. In the work of Yu and Tan, 21 a joint algorithm for rate control and adaptive modulation coding of SC‐FDE cognitive decision engine was proposed and obtained simulation results show superior performance, but only for a single‐carrier communication system. Furthermore, in the work of Li et al, 22 a cognitive decision engine based on a binary chaotic particle swarm optimization was proposed, which has a better performance.…”

“…Yu and Tan, 21 a joint algorithm for rate control and adaptive modulation coding of SC-FDE cognitive decision engine was proposed and obtained simulation results show superior performance, but only for a single-carrier communication system. Furthermore, in the work of Li et al, 22 a cognitive decision engine based on a binary chaotic particle swarm optimization was proposed, which has a better performance.…”

Adaptive modulation and coding scheme for MB-OFDM UWB systems

“…Indeed, the AMC approach was also exploited in [12] for optical transceiver. The benefit of MCS in improving the spectral efficiency into satellite mobile system was discussed in [13]. Then, the AMC proposal was employed in the switching between M-ary pulse position modulation (M-PPM), M-ary pulse amplitude modulation (M-PAM) and low density parity check (LDPC) coding rate in [14].…”