Dissertation > Excellent graduate degree dissertation topics show

Uplink Interference Coordination in LTE Systems

Author: YuJianFei
Tutor: SunYong
School: Suzhou University
Course: Computer Applications
Keywords: LTE technology inter-cell interference frequency alloction power alloction interference coordination
CLC: TN929.5
Type: Master's thesis
Year: 2012
Downloads: 118
Quote: 0
Read: Download Dissertation

Abstract


Interference problem has been the key issue affecting mobile communication, LTE technology is better than the current3G technology to slove intra-cell interference problem, but along with more severe inter-cell interference problem, this makes inter-cell interference suppression technology become the focus in LTE. The air interface used in the uplink is SC-FDMA, SC-FDMA is challenging in terms of channel allocation due to the single carrier property which invokes a constraint that the subchannels allocated to a user have to be adjacent to each other or equally distanced unlike in OFDMA where a user can be assigned subchannels freely. This paper is a study of LTE uplink interference coordination technology, so we must take into consideration the constraints of frequency allocation.At present, the industry presents a variety of inter-cell interference coordination scheme, some of them are based on bandwidth scheduling scheme, and others are based on power control scheme. Although these two solutions can be very good to reduce inter-cell interference, but if we can firstly use the bandwidth scheduling scheme and then use power control scheme, it can be better to reduce inter-cell interference. The main research works of this paper are as follows.(1) According to the uplink bandwidth alloction characteristics, this paper presents a new packet scheduling algorithm. The algorithm by estimating each user in all cell channels’SNR to determine how to allocate channels to the users, the total principle is to allocate channel to the user who has the maximum SNR on it, and also considering the uplink bandwidth alloction characteristics.(2) This paper presents a new uplink interference coordination scheme which combines bandwidth scheduling scheme with power control scheme. The scheme firstly allocates the bandwidth according to bandwidth allocation algorithm, and then allocates appropriate power according to power control algorithm. Experimental results show that after this paper’s bandwidth allocation algorithm to allocate bandwidth, it can be very good to reduce inter-cell interference, together with reasonable power allocation, further reducing inter-cell interference.(3) In the summary of above work, this paper presents a simulation model of LTE uplink interference coordination. Based on the model, compare this paper’s scheme with the existing scheme in throughput, efficiency, time delay and detailed analysis the experimental results.

Related Dissertations

  1. The Anti-interference Research of Cell in LTE System,TN929.5
  2. The Research on the Intercell Interference Coordination for Downlink OFDMA Wireless Cellular Networks,TN929.531
  3. The Research of Multi-user Detection Technique in the TD-SCDMA Trunking System,TN929.533
  4. Research on Relay and Reuse Technology in a New Generation of Cellular Systems,TN929.53
  5. Interference Coordination Study in LTE Network,TN929.5
  6. Research on Resource Allocation in OFDMA Systems,TN929.531
  7. Research on Inter-cell Interference Coordination of LTE-Advanced System,TN929.5
  8. Interference Coordination and Resource Allocation in Hierarchical Macro/Femto Networks,TN929.5
  9. Research on Resource Allocation Algorithms Based on OFDMA Systems,TN929.531
  10. Research on 3GPP LTE Uplink Interference Coordination,TN929.5
  11. Research on Interference Coordination Technology Based on Collaborative Multi-Base Stations,TN929.5
  12. Electromagnetic Compatibility Analysis of the Radio Station Management Application,TN924
  13. Research of Interference Suppression Technologies in the Next Generation Wireless Communication System,TN929.5
  14. An Inter-Cell Interference Coordination Scheme Based on Virtual Hierarchical Cell Structure,TN929.5
  15. Research on Adaptive Resource Allocation for OFDM-Based Cooperative Relaying Systems,TN919.3
  16. Research on Radio Resource Allocation Algorithm of OFDMA System,TN929.5
  17. Research on Radio Resource Management Policies in MIMO-OFDM Systems,TN919.3
  18. 3GPP LTE system, the dynamic interference management technology,TN929.5
  19. Research on Interference Management in LTE-A,TN929.5
  20. Research on the Key Technologies of Femtocell Interference Coordination,TN929.5
  21. Research on WiMAX Simulation System and Interference Coordination Technology Based on IEEE802.16e Standard,TN925.93

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications
© 2012 www.DissertationTopic.Net  Mobile