Cell Center/Edge Transmission Power Ratio Optimization to Mitigate Downlink Inter-Cell Interference in OFDM Systems

OFDM based systems should provide a high data rate for users at the cell edge. The spectrum efficiency must be improved significantly, and interference mitigation techniques should be reconsidered to satisfy the performance requirements and QoS for users throughout the cells. This paper extends the results of earlier studies on interference problems for the fractional frequency reuse (FFR) scheme using a system level simulator. The transmission power ratio of users in the cell center to those at cell edge is varied, and the user throughput is calculated to find the optimum transmission power ratio of 0.3.

[1]  Albert Thomas.  INTERFERENCE SUPRESSION OF THE LINEAR ANTENNA ARRAYS CONTROLLED BY PHASE WITH USE OF SQP ALGORITHM , 2006 .

[2]  Fathi E. Abd El-Samie,et al.  Frequency Domain Interference Cancellation for Single Carrier Cyclic Prefix CDMA System , 2008 .

[3]  Moawad I. Dessouky,et al.  Geometrical Analysis of High Altitude Platforms Cellular Footprint , 2007 .

[4]  Moawad I. Dessouky,et al.  Uplink power-based admission control in multi-cell WCDMA networks with heterogeneous traffic , 2008 .

[5]  Moctar Mouhamadou,et al.  INTERFERENCE SUPRESSION OF THE LINEAR ANTENNA ARRAYS CONTROLLED BY PHASE WITH USE OF SQP ALGORITHM , 2006 .

[6]  Didem Kivanc-Tureli,et al.  Computationally efficient bandwidth allocation and power control for OFDMA , 2003, IEEE Trans. Wirel. Commun..

[7]  Moawad I. Dessouky,et al.  DESIGN OF HIGH ALTITUDE PLATFORMS CELLULAR COMMUNICATIONS , 2007 .

[8]  N. Blaunstein,et al.  PREDICTION OF PROPAGATION CHARACTERISTICS IN INDOOR RADIO COMMUNICATION ENVIRONMENTS , 2006 .

[9]  Ajay Chakraborty,et al.  Augmentation of Anti-Jam GPS System Using Smart Antenna with a Simple DOA Estimation Algorithm , 2007 .

[10]  Christos N. Capsalis,et al.  PERFORMANCE OF A SIX-BEAM SWITCHED PARASITIC PLANAR ARRAY UNDER ONE PATH RAYLEIGH FADING ENVIRONMENT , 2006 .

[11]  H. El-Sallabi,et al.  Effect of Mutual Coupling on Capacity of MIMO Wireless Channels in High SNR Scenario , 2006 .

[12]  Homayoon Oraizi,et al.  EVALUATION OF MIMO CHANNEL CAPACITY IN INDOOR ENVIRONMENTS USING VECTOR PARABOLIC EQUATION METHOD , 2008 .

[13]  Masamitsu Tokuda,et al.  The Power Line Transmission Characteristics for an OFDM Signal , 2006 .