Filters








188 Hits in 5.4 sec

A Zone Assignment Algorithm for Fractional Frequency Reuse in Mobile WiMAX Networks [chapter]

Michael Einhaus, Andreas Mäder, Xavier Pérez-Costa
2010 Lecture Notes in Computer Science  
Fractional Frequency Reuse (FFR) is a key concept for increasing the spectral efficiency of OFDMA-based broadband wireless access systems such as Mobile WiMAX.  ...  In this paper we propose an efficient algorithm to address this problem with low computational complexity. The performance of the algorithm is compared with the optimum zone assignment.  ...  Fractional Frequency Reuse in Mobile WiMAX In Mobile WiMAX, the frequency channel is divided into successive MAC frames in the time domain.  ... 
doi:10.1007/978-3-642-12963-6_14 fatcat:fab27ump35fypbd7f72ehyix24

Fractional Frequency Reuse for Hierarchical Resource Allocation in Mobile WiMAX Networks

Tara Ali-Yahiya, Hakima Chaouchi
2010 EURASIP Journal on Wireless Communications and Networking  
We propose a frequency planning based on zone switching diversity scheme for multicell OFDMA mobile WiMAX networks.  ...  In our approach, we focus on the use of Fractional Frequency Reuse (FFR) for guaranteeing the quality of service for the different service flows in the system.  ...  Resource allocation in multicell OFDMA networks has been developed in several works using Fractional Frequency Reuse (FFR).  ... 
doi:10.1155/2010/363065 fatcat:y6pme2sff5epxmn7v5sbbhvelu

Mobile WiMAX systems: performance and evolution

Fan Wang, Amitava Ghosh, Chandy Sankaran, Philip Fleming, Frank Hsieh, Stanley Benes
2008 IEEE Communications Magazine  
Currently over 260 service providers are deploying fixed, portable and mobile WiMAX networks in 110 countries.  ...  Mobile WiMAX was successfully adopted by ITU as one of the IMT-2000 technologies in November 2007. Since then mobile WiMAX (a.k.a.  ...  MOBILE WIMAX WITH FRACTIONAL FRACTIONAL REUSE In order to get good cell edge reliability, it is preferable to send the MAP message in a PUSC 1/3 zone.  ... 
doi:10.1109/mcom.2008.4644118 fatcat:ervtzgrvcbfk5opphpzyvq3g2m

A distributed resource management framework for interference mitigation in OFDMA femtocell networks

Jongwon Yoon, Mustafa Y. Arslan, Karthikeyan Sundaresan, Srikanth V. Krishnamurthy, Suman Banerjee
2012 Proceedings of the thirteenth ACM international symposium on Mobile Ad Hoc Networking and Computing - MobiHoc '12  
We implement RADION on a real WiMAX femtocell testbed deployed in a typical indoor setting.  ...  Next generation wireless networks (i.e., WiMAX, LTE) provide higher bandwidth and spectrum efficiency leveraging smaller (femto) cells with orthogonal frequency division multiple access (OFDMA).  ...  If the resources assigned to the isolation zone is a fraction f of that of the reuse zone, the BS refines the status of a client in class 2 by scheduling the client on resources in the isolation zone and  ... 
doi:10.1145/2248371.2248405 dblp:conf/mobihoc/YoonASKB12 fatcat:nqornv5lhrhvtekbog2x5zj4pi

Local Interference Coordination in Cellular OFDMA Networks

Marc C. Necker
2007 Vehicular Technology Conference-Fall (VTC-FALL), Proceedings, IEEE  
However, it is desirable to reuse the complete available frequency spectrum in every cell in order to maximize the resource utilization.  ...  The currently emerging 802.16e (WiMax) and 3GPP Long Term Evolution (LTE) cellular systems are based on Orthogonal Frequency Division Multiple Access (OFDMA).  ...  Scharf, and Andreas Weber for their valuable input.  ... 
doi:10.1109/vetecf.2007.368 dblp:conf/vtc/Necker07 fatcat:orgwz5hzhzaxngd5v6zkx37wuu

Scheduling Constraints and Interference Graph Properties for Graph-based Interference Coordination in Cellular OFDMA Networks

Marc C. Necker
2009 Journal on spesial topics in mobile networks and applications  
We develop a heuristic that allows the combination of arbitrary scheduling algorithms with the IFCO mechanism.  ...  The currently emerging 802.16e (WiMAX) and 3GPP Long Term Evolution (LTE) cellular systems are based on Orthogonal Frequency Division Multiple Access (OFDMA).  ...  ACKNOWLEDGMENTS This research was done in cooperation with Alcatel-Lucent Research and Innovation Department, Stuttgart. 2 The author would like to thank Martin Köhn and Michael Scharf for their valuable  ... 
doi:10.1007/s11036-009-0155-8 fatcat:ulmgzsy6srh23lnndf6bikeare

FERMI

Mustafa Y. Arslan, Jongwon Yoon, Karthikeyan Sundaresan, Srikanth V. Krishnamurthy, Suman Banerjee
2011 Proceedings of the 17th annual international conference on Mobile computing and networking - MobiCom '11  
the same frame; and (iv) employs efficient, scalable algorithms to determine a fair resource allocation across the entire network with high utilization.  ...  In this paper, we design and implement one of the first resource management systems, FERMI, for OFDMA-based femtocell networks.  ...  This renders Fractional Frequency Reuse (FFR) solutions (proposed for macrocells) inadequate in mitigating interference in femtocells.  ... 
doi:10.1145/2030613.2030617 dblp:conf/mobicom/ArslanYSKB11 fatcat:xjds6736lnb4vb5ntsxuzw2kme

A Resource Management System for Interference Mitigation in Enterprise OFDMA Femtocells

Mustafa Y. Arslan, Jongwon Yoon, Karthikeyan Sundaresan, Srikanth V. Krishnamurthy, Suman Banerjee
2013 IEEE/ACM Transactions on Networking  
In this paper, we design and implement one of the first resource management systems, FERMI, for OFDMA-based femtocell networks.  ...  the same frame; and (iv) employs efficient, scalable algorithms to determine a fair resource allocation across the entire network with high utilization and low overhead.  ...  This renders Fractional Frequency Reuse (FFR) solutions (proposed for macrocells) inadequate in mitigating interference between femtocells.  ... 
doi:10.1109/tnet.2012.2226245 fatcat:gayvpswfqzfzzdjdkh6je7qfey

Mobile WiMAX: Multi-Cell Network Evaluation and Capacity Optimization

Y. Q. Bian, A. R. Nix
2008 VTC Spring 2008 - IEEE Vehicular Technology Conference  
This is based on a 5MHz (512-FFT) OFDMA TDD profile (using one-third fractional reuse) deployed in licensed 3.5 GHz spectrum.  ...  This paper presents a comprehensive study of such a scenario, with numerical analysis of mobile WiMAX presented for a multi-cell deployment.  ...  In order to avoid intra-cell interference within a cell, three sectors are employed at each BS and a frequency reuse factor of one (resource being fractionally Mobile WiMAX: Multi-Cell Network Evaluation  ... 
doi:10.1109/vetecs.2008.269 dblp:conf/vtc/BianN08 fatcat:jqxq2k3dujb3jew5ejkxcehqhy

Cost Effective Coverage Extension in 802.16j Mobile Multihop Relay Networks

Yongchul Kim, Mihail L. Sichitiu
2010 2010 IEEE Wireless Communication and Networking Conference  
We propose a simple scheduling scheme for serving the subscriber stations (SSs) in a fair manner and evaluate the performance of WiMAX networks with relays under this scheduling scheme.  ...  WiMAX (IEEE 802.16) has emerged as a promising radio access technology for providing high speed broadband connectivity to subscribers over large geographic regions.  ...  Thus, a frequency reuse scheme can be applied only for this access zone period.  ... 
doi:10.1109/wcnc.2010.5506530 dblp:conf/wcnc/KimS10 fatcat:urr6d5zavbgdplt53gvouzzkiy

Radio Performance [chapter]

2011 LTE, WIMAX and WLAN Network Design, Optimization and Performance Analysis  
473 14.17.3 Fractional Reuse 473 14.17.4 Soft.  ...  401 13.8.1 WiMAX Frequency Planning 401 13.8.2 WiMAX Code Planning (Cell Identification) 406 13.8.3 Tips for PermBase Resource Planning 407 13.8.4 Spectrum Efficiency 407 14  ... 
doi:10.1002/9781119970460.ch11 fatcat:xqvxys4ydfbi5h2lviee7bmfna

A Novel Downlink Interference Management Mechanism for Two-Tier OFDMA Femtocell Networks

Gwo-Jong Yu
2016 Journal of Advances in Computer Networks  
The proposed scheme combines fractional frequency reuse (FFR) in macrocell and a heuristic graph-based channel assignment algorithm in femtocell to reduce the interference problem.  ...  In this paper, a resource allocation algorithm is proposed to resolve the two-tier downlink interference problem.  ...  ACKNOWLEDGMENT The authors would like to thanks the partial financial support from National Science Council in Taiwan with project number: NSC-103-2221-E-156-009.  ... 
doi:10.18178/jacn.2016.4.2.208 fatcat:ka4jlie765eanhzmvc6rnwceza

Intercell Radio Resource Management through Network Coordination for IMT-Advanced Systems

Young-June Choi, Narayan Prasad, Sampath Rangarajan
2010 EURASIP Journal on Wireless Communications and Networking  
We verify our solution using analysis and simulation experiments where two or three BSs are coordinated to support fractional frequency reuse or macrodiversity and demonstrate that our solution can guarantee  ...  In IMT-Advanced systems, a cross-layer approach coupling network coordination and radio resource managements enables mitigation of intercell interference and throughput improvement of cell-edge users.  ...  other forms of network MIMO techniques applicable to cell-edge users, although we focused on fractional frequency reuse and macro-diversity in this work.  ... 
doi:10.1155/2010/531347 fatcat:rouuttmc5rf7lgp7ir5rrdj77i

Optimized network dimensioning and planning for WiMAX technology

V. Teterin, S. Hurley
2014 Ad hoc networks  
reuse schemes including more aggressive fractional reuse of bandwidth.  ...  Two common frequency reuse configurations for a multi-cellular deployment with 3-sector base stations are used -reuse of 3 and reuse of 1, also referred to as universal frequency reuse.  ...  In other words to increase profit for the company while improving the quality of service they provide to network users, enhancing the coverage level and the overall capacity of the system in order to reduce  ... 
doi:10.1016/j.adhoc.2013.08.016 fatcat:cwy3lgcouzdltbsmwn52hdpkh4

A Review of Radio Resource Management in FemtoCell from Interference Control Perspective

Nipendra Kayastha, Dusit Niyato
2017 ECTI Transactions on Computer and Information Technology  
Able to be installed and maintained by individual user, femtocell provides a cost effective solution to mobile operators to achieve higher network capacity.  ...  However, interference due to two-tier network structure introduces many challenges for successful femtocell deployment.  ...  A centralized resource management is assumed which collects the required information for network optimization for a Korean version of mobile WiMAX called WiBro [95] .  ... 
doi:10.37936/ecti-cit.2017112.104906 fatcat:q77dlr2y4jccti24iheteia7te
« Previous Showing results 1 — 15 out of 188 results