Proceedings ArticleDOI
A downlink ICIC method based on region in the LTE-Advanced system
Jian Huang,Peter Xiao,Xiaojun Jing +2 more
- pp 420-423
TLDR
The new ICIC method based on region in OFDM downlink cellular systems has better performance than original one in improving users' throughput and can drastically improve the adjustment accuracy of ICIC.Abstract:
Inter-cell interference coordination (ICIC) is one of the key technologies in the multi-cell radio resource management of mobile systems. It plays a vital role in mitigating strong inter cell interference and guaranteeing proper quality of services for in-progress sessions. Because heterogeneous deployment is adopted in LTE-Advanced, and interference problem becomes serious. In this paper, we propose an ICIC method based on region in OFDM downlink cellular systems. Through dividing the border of cells into several segments, and marking by identities, when serious inter-cell interference occurs, the serving cell transfer the region information with the coordination information. The neighbor cell can judge whether it has exerted interference on the serving cell and perform ICIC action if it is yes. It can drastically improve the adjustment accuracy of ICIC. By simulating our method in the system simulation platform of LTE-Advanced, we can see the new method has better performance than original one in improving users' throughput.read more
Citations
More filters
Journal ArticleDOI
LTE-Advanced Radio Access Enhancements: A Survey
TL;DR: An overview of the key radio access features and functionalities of the LTE-Advanced radio access network, supported by the simulation results is presented.
Proceedings ArticleDOI
An Interference Coordination Scheme for Picocell Range Expansion in Heterogeneous Networks
Che-Sheng Chiu,Chia-Chi Huang +1 more
TL;DR: An inter-layer interference coordination scheme on the downlink side for an OFDMA co-channel macro-pico HetNet that carries out CRE technique can bring a significant increase in overall system capacity as well as reduce the user outage rate in the system, especially when aggressive CRE is applied.
Proceedings ArticleDOI
Analytical Model of Proportional Fair Scheduling in Interference-Limited OFDMA/LTE Networks
TL;DR: An analytical model for the SINR distribution of the scheduled subcarriers of an OFDMA system with proportional fair scheduling is presented and it is shown that the models are approximate estimators for the performance of rate-based proportionalFair scheduling, while they outperform some simpler prediction models from related work significantly.
Proceedings ArticleDOI
An asymmetric cell selection scheme for inter-cell interference coordination in heterogeneous networks
Xinsheng Zhao,Chao Wang +1 more
TL;DR: An asymmetric cell selection scheme for inter-cell interference coordination (ICIC) to solve the problems of cell range expansion by pico eNodeB in heterogeneous networks and the results show that the proposed scheme can remarkably improve the system capacity.
Patent
Method and equipement for coordinating interference
Dengkun Xiao,Jian Huang +1 more
TL;DR: In this article, the authors presented a method and an apparatus for interference coordination processing, which includes: obtaining region information of a positioned time-frequency resource block according to received transmission signaling.
References
More filters
Book
3G Evolution : HSPA and LTE for Mobile Broadband
TL;DR: In this paper, the authors present a very up-to-date and practical book, written by engineers working closely in 3GPP, gives insight into the newest technologies and standards adopted by threeGPP with detailed explanations of the specific solutions chosen and their implementation in HSPA and LTE.
Proceedings ArticleDOI
Joint demodulation of cochannel signals using MLSE and MAPSD algorithms
TL;DR: In this paper, sequence estimation and symbol detection algorithms for the demodulation of co-channel narrowband signals in additive noise are proposed based on the maximum likelihood (ML) and maximum a posteriori (MAP) criteria for the joint recovery of both cochannel signals.
Journal ArticleDOI
Power allocation for OFDM using adaptive beamforming over wireless networks
TL;DR: A network-wide adaptive power control algorithm is used to achieve the desired signal-to-interference-and-noise-ratio at each OFDM subcarrier and increase the power efficiency of the network, and it is shown that it improves the performance of those systems.
Proceedings ArticleDOI
A Novel Semi-Dynamic Inter-Cell Interference Coordination Scheme Based on User Grouping
Li Li,Dong Liang,Wenbo Wang +2 more
TL;DR: Simulation results show that the novel scheme can significantly enhance the cell edge throughput and reduce blocking probability, especially for networks with heavy-loaded spots in cell-edge area.
Proceedings ArticleDOI
A Low Intercell Interference Variation Scheduler for OFDMA Networks
TL;DR: A minimum variance scheduler that allows for opportunistic scheduling - and thereby to take advantage of multi-user frequency diversity - but keeps the variation of intercell interference at a low level is proposed.