Title :
Channel-aware inter-cell interference coordination for the uplink of 3G LTE networks
Author :
Al-Rawi, Mohammed ; Jäntti, Riku ; Torsner, Johan ; Sågfors, Mats
Author_Institution :
Dept. of Commun. & Networking, Helsinki Univ. of Technol., Helsinki
Abstract :
In this paper we propose a heuristic inter-cell coordination scheme for scheduling users in an opportunistic multi-cell network. The scheme is mainly designed to be implemented in the uplink of networks that utilize the third generation partnership project long term evolution (3GPP LTE) technology. The objective of the scheme is to coordinate the uplink transmission in neighboring cells such that inter-cell interference is mitigated and the aggregate utility of the mobile users is maximized. In addition to the heuristic approach we formulate the inter-cell scheduling coordination as an integer programming problem. While the optimal solution cannot be realized in practice due to the computational complexity, it provides good insights of how well different algorithms perform. Numerical results show that the proposed coordination method delivers near-optimal performance in the exemplified cases.
Keywords :
3G mobile communication; adjacent channel interference; cellular radio; integer programming; interference suppression; scheduling; wireless channels; 3GPP LTE network; channel-aware heuristic inter-cell interference coordination; computational complexity; integer programming; interference mitigation; long term evolution; opportunistic multicell network; scheduling; third generation partnership project; uplink transmission; Aggregates; Bandwidth; Communications technology; Downlink; Frequency conversion; Interference; Long Term Evolution; Peak to average power ratio; Power control; Scheduling algorithm;
Conference_Titel :
Wireless Telecommunications Symposium, 2009. WTS 2009
Conference_Location :
Prague
Print_ISBN :
978-1-4244-2588-4
Electronic_ISBN :
1934-5070
DOI :
10.1109/WTS.2009.5068967