公开(公告)号：MY147158A

公开(公告)日：2012-11-14

申请号：MYPI20072066

申请日：2007-11-22

Applicant: MIMOS BERHAD

Inventor： SAEED RASHID ABDELHALEEM ,  ALI BORHANUDDIN MOHD ,  MOHAMAD HAFIZAL ,  KYUN NG CHEE

IPC: H04B7/26

Abstract: CAPACITY HAS BECOME OF PRIMARY IMPORTANCE IN WIMAX MESH NETWORKS (WMN) DUE TO THE EVER INCREASING DEMAND FOR MULTIMEDIA SERVICES AND THE POSSIBILITY OF PROVIDING HIGH SPEED WIRELESS INTERNET. THE MAJOR FACTOR LIMITING CAPACITY IN SUCH SYSTEMS IS INTERFERENCE ORIGINATING FROM ADJACENT NODES, NAMELY CO-CHANNEL INTERFERENCE. THE PRESENT INVENTION IS GENERALLY AN ANALYSIS OF CO-CHANNEL INTERFERENCE FOR A SPECTRALLY EFFICIENT WMN CONFIGURATION. A NEW CHANNEL ALLOCATION ALGORITHM IS PROPOSED BY USING SMART ANTENNA SYSTEM TO ELIMINATE THE CO-CHANNEL INTERFERENCE. THIS ALGORITHM CONSIDERS THE NUMBER OF SUBCHANNELS IN THE OFDM SPECTRUM IN ORDER TO INCREASE THE SYSTEM CAPACITY. THE NEW ALGORITHM IS DESIGNED TO AVOID THE SAME SUBCHANNEL OF OFDM SPECTRUM TO BE ALLOCATED IN ADJACENT NODES. THE SYSTEM CAPACITY CAN BE INCREASED WHEN THE CO-CHANNEL INTERFERENCE IS REDUCED.