Unlock instant, AI-driven research and patent intelligence for your innovation.

Power control method based on peri-zero judgment in multi-aerial system

A multi-antenna system, decision feedback technique used in transmission control/equalization, error prevention/detection through diversity reception, etc.

Inactive Publication Date: 2011-04-20
UNIV OF SCI & TECH OF CHINA
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to "International Institute of Electronics and Electrical Engineers Information Theory" (IEEE Transactions on Information Theory, Vol.51, Issue 1, Jan.2005, Page(s): 154-172), in the case that the receiving end fully knows the channel information , the detection performance can be improved by jointly optimizing the transmit preprocessing filter and the receive filter, but the amount of feedback required for transmit preprocessing is large, and it does not involve the improvement of BER by power control

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power control method based on peri-zero judgment in multi-aerial system
  • Power control method based on peri-zero judgment in multi-aerial system
  • Power control method based on peri-zero judgment in multi-aerial system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] This embodiment is applied to the ZF-DFD system of multi-antenna power control. It is assumed that M antennas are used at the transmitting end and N antennas are used at the receiving end, and the signals of multiple transmitting ends are irrelevant; the receiving end calculates the optimized transmission power matrix P, and fed back to the transmitting antenna, by weighting the transmitted signal with the power matrix P; the receiving end performs ZF-DFD, and sequentially detects the signals transmitted by M antennas.

[0064] The block diagram of the transmission and reception structure system of the power control method based on zero-forcing decision feedback detection in the multi-antenna system of the present invention is shown in Figure 1: the transmission data 1 is demultiplexed by the transmission baseband processing unit 2, and each antenna is transmitted by the power weighting module 3 The signal power is adjusted, and the baseband signal is modulated into a ra...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a power control method based on zero-approach judgment feedback check, wherein it is characterized in that: under the rule of minimize block error rate, calculating power distribution matrix, via part feedback signal channel that only feedbacks power information, decomposing the multiple between signal channel matrix and the power matrix into one unitary matrix and one upper triangle matrix; using power matrix weighted to send signal, to make the decomposed upper triangle matrix with constant diagonal line, and optimizing the check sequence and check property of zero-approach judgment feedback check, to reduce the average bit error rate and the block error rate. The invention can reduce the complexity, the average bit error rate and block error rate.

Description

Technical field: [0001] The present invention belongs to the field of mobile communication multiple inputs and multiple output (MIMO) antenna technology, which involves the slow decline channel of Rayleigh.Detection (ZF-DFD) reduces the multi-antenna transmitting power control technology of the system error (BLER) and the average bit rate (BER). Background technique: [0002] The V-BLAST transceiver and sending system is an effective method for the currently widely studied in the mobile communication field and increase the speed of wireless link transmission and spectrum utilization.How to correctly detect multi -antenna data is one of the difficulties and points of MIMO system design. [0003] According to the IEEE Commun.magzine, VOL.29, NO.12, DEC.1991 Page (S): 25-34), the maximum and likelihood detection (MLD) can reach the best.BER performance, but because its complexity is too high, it is not easy to achieve in the actual system.According to the "34th signal, Systems and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/005H04L1/06
Inventor 邱玲张璇赵昆朱近康
Owner UNIV OF SCI & TECH OF CHINA