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

A generalized spatial modulation, transmit antenna technology, applied in space transmit diversity, diversity/multi-antenna systems, error prevention/detection through diversity reception, etc., can solve the problem of bit error rate and capacity performance deterioration of generalized spatial modulation system

Active Publication Date: 2014-04-02
XI AN JIAOTONG UNIV
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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, aimi

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

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[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0039] see figure 1 As shown, the present invention aims at the serious deterioration of the bit error rate and capacity performance of the generalized spatial modulation system in the correlated channel scenario, and proposes a transmit antenna selection method for the generalized spatial modulation system under the correlated channel, which includes the following steps:

[0040] 1) The receiving end obtains the generalized spatial modulation system N through ideal channel estimation R × M T The MIMO channel matrix H, where, m T means M T transmit antennas, N R means N R receiving antennas, H w is N R × M T The additive white Gaussian noise matrix, R R is the spatial correlation matrix of the receiving antenna, R T is the spatial correlation matrix of the transmitting antenna; where,

[0041] Additive white Gaussian noise matrix H w , any eleme...

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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...

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Application Information

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IPC IPC(8): H04B7/06H04L1/06
Inventor 任品毅梁栋孙黎杜清河
Owner XI AN JIAOTONG UNIV
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