Transmitting antenna selection method for generalized spatial modulation system under correlated channel

Abstract

The invention discloses a transmitting antenna selection method for a generalized spatial modulation system under a correlated channel. The method comprises the following steps that 1) a receiving terminal performs ideal channel estimation to obtain an NR*MT MIMO (multiple-input and multiple-output) channel matrix H of the generalized spatial modulation system; 2) the receiving terminal calculates an L2 norm measure matrix Fh and a distance measure matrix D, which are used for the antenna selection method, according to the MIMO channel matrix H obtained in the step 1); 3) the receiving terminal selects an effective transmitting antenna set Phi according to the L2 norm measure matrix Fh and the distance measure matrix D, and informs a transmitting terminal of a selection result through a feedback channel; 4) the transmitting terminal performs generalized spatial modulation and transmission according to the effective transmitting antenna set Phi selected in the step 3). According to the method, characteristics of a spatial constellation set are changed by transmitting antenna selection in the generalized spatial modulation system, so that the problem that the bit error rate and capacity performance of the system are greatly reduced due to the fact of spatial constellation distinction difficulty caused by the correlation of transmitting antennae in an actual generalized spatial modulation system is solved.

Description

【Technical field】 [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a method for selecting a transmitting antenna of a generalized space modulation system under a relevant channel. 【Background technique】 [0002] Spatial Modulation (SM), Space Shift Keying (SSK), Generalized Spatial Modulation (GSM) and Generalized Space Shift Keying (GSSK) technologies have been proposed in recent years A new type of wireless communication physical layer transmission technology. This technology can overcome the large inter-channel interference (ICI) inherent in the traditional Multiple-Input and Multiple-Output (MIMO) technology, the high complexity of signal detection, and the inter-antenna synchronization (inter-antenna Synchronization, IAS) and multi-radio frequency (radio frequency, RF) The high requirements of links and other defects. It is a physical layer transmission technology that uses spatial degrees of freedom other tha...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a transmit antenna selection method for a generalized spatial modulation system in a correlated channel, aiming at the problem that the bit error rate and capacity performance of the generalized spatial modulation system deteriorate seriously in the correlated channel scenario

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