MISO-OFDM (Multiple-Input Single-Output-Orthogonal Frequency Division Multiplexing) downlink resource distribution method based on energy efficiency

A MISO-OFDM, downlink technology, applied in the field of energy efficiency-based MISO-OFDM downlink resource allocation, to achieve the effect of energy efficiency guarantee
CN102811490AActive Publication Date: 2012-12-05HUAZHONG UNIV OF SCI & TECH
1 Cites 14 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2012-12-05

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses an MISO-OFDM (Multiple-Input Single-Output-Orthogonal Frequency Division Multiplexing) downlink resource distribution method based on energy efficiency, comprising the followings steps of: averagely distributing a total transmitted power of a base station to each sub carrier frequency in a used sub carrier frequency set omega of the base station; averagely distributing all the sub carrier frequencies in the sub carrier frequency set to all communicating users; determining the quantity of the sub carrier frequencies which are distributed to each user; and determining the sub carrier frequency set which is distributed to each user. According to the MISO-OFDM downlink resource distribution method based on the energy efficiency disclosed by the invention, a sub carrier frequency distribution scheme which has fairness and efficiency is provided under a double-variable restriction condition of a total power and each user capacity lower limit; and the optimization of system efficiency is realized through a sub channelization scheme.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention belongs to the technical field of wireless communication, and more specifically relates to an energy efficiency-based MISO-OFDM downlink resource allocation method. Background technique

[0002] Multiple-Input Single-Output (Multiple-Input Single-Output, MISO) is a smart antenna technology. In this technology, the transmitting end of the communication system uses multiple antennas, while the receiving end has only one antenna. The antennas at the end are combined to achieve the smallest error and the best data transmission speed. MISO technology has been widely used in digital television (DTV), wireless local area networks (WLANs), metropolitan area networks (MANs) and mobile communications.

[0003] Orthogonal Frequency Division Multiplexing (OFDM for short) has been used as the basic modulation method of the next generation broadband wireless communication system. It first uses serial-to-parallel conversion to convert the sign...

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