Resource allocation method of the multi-user MIMO-OFDM system of the QoS

A MIMO-OFDM, quality of service technology, applied in diversity/multi-antenna systems, space transmit diversity, communication between multiple stations, etc., can solve the problem of insufficient use of space channel resources, system performance needs to be improved, signal-to-noise big difference
CN101018084AInactive Publication Date: 2007-08-15BEIJING UNIV OF POSTS & TELECOMM
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING UNIV OF POSTS & TELECOMM
Publication Date
2007-08-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The disclosed resource allocation method for ensuring QoS in MIMO-OFDM system comprises: BS of MIMO- OFDM system takes SVD decomposition to user-feedback channel matrix to obtain parallel feature sub-channel; from every sub-band; on condition BS total power allocated evenly, the BS scheduler allocates some sub-band to user according to user support speed and PRI, then re-allocates power on all feature sub-channels, loads allocated power and bits according to greedy algorithm till loading complete, and taking out the residual sub-band and power to reallocate to others.
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Description

technical field

[0001] The invention relates to a MIMO-OFDM system scheduling method, in particular to a resource allocation method of a quality-of-service guaranteed multi-user multiple-input multiple-output-orthogonal frequency division multiplexing MIMO-OFDM system. Background technique

[0002] With the maturity of the 3G standard, people gradually focus on the research on the future wireless communication system. The future mobile communication system is a human-centered system to meet the individual needs of people, aiming at different business needs and environments, so that anyone can truly communicate freely in any business at any time and any place .

[0003] With the continuous improvement of system transmission rate, there are two most serious challenges: multipath fading channel and bandwidth efficiency. Orthogonal Frequency Division Multiplexing (OFDM) technology reduces the impact of multipath fading by converting frequency-selective channels into flat chann...

Claims

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