Planning for small cells in a cellular network: Why it is worth it

Most of the literature on heterogeneous cellular networks is focused on analyzing them as a single macro cell embedded with small cells. In this paper, we take a global perspective and analyze the effect of deploying small cells on the performance of a network comprising several macro cells. We identify potential locations for low-power base-stations based on the coverage patterns of the macro cells and propose three schemes for placing the small cells. Using the model recommended by 3GPP, we show that by judiciously installing just two small cells for every macro base-station at these locations and allocating separate resources to all the small cells on a global level, we can increase the performance of the network significantly (~ 45%). An added benefit of our schemes is that we can switch off the macro base-stations at night (when the number of active users is low) and significantly reduce their operation cost.

[1]  Hanif D. Sherali,et al.  Femtocell Base Station Deployment in Commercial Buildings: A Global Optimization Approach , 2012, IEEE Journal on Selected Areas in Communications.

[2]  Kiyomichi Araki,et al.  Optimization of picocell locations and its parameters in heterogeneous networks with hotspots , 2012, 2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications - (PIMRC).

[3]  Xiaojun Lin,et al.  Gibbs-sampling-based optimization for the deployment of small cells in 3G heterogeneous networks , 2013, 2013 11th International Symposium and Workshops on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks (WiOpt).

[4]  Jaakko J. Sauvola,et al.  Features in future: 4G visions from a technical perspective , 2001, GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270).

[5]  E. Yanmaz,et al.  Dynamic load balancing performance in cellular networks with multiple traffic types , 2004, IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004.

[6]  Constantine A. Balanis,et al.  Antenna Theory: Analysis and Design , 1982 .

[7]  Yang Richard Yang,et al.  Proportional Fairness in Multi-Rate Wireless LANs , 2008, IEEE INFOCOM 2008 - The 27th Conference on Computer Communications.

[8]  Hossein Bidgoli.  Handbook of Information Security, Key Concepts, Infrastructure, Standards, and Protocols (Handbook of Information Security) , 2006 .

[9]  Rose Qingyang Hu,et al.  Optimal Fractional Frequency Reuse and Power Control in the Heterogeneous Wireless Networks , 2013, IEEE Transactions on Wireless Communications.

[10]  Jeffrey G. Andrews,et al.  A Tractable Approach to Coverage and Rate in Cellular Networks , 2010, IEEE Transactions on Communications.

[11]  Chao-Wen Lin.  Scheduling in a Multi-Sector Wireless Cell , 2009 .

[12]  Bo Li,et al.  An efficient algorithm for adaptive cell sectoring in CDMA systems , 2003, IEEE International Conference on Communications, 2003. ICC '03..

[13]  Jeffrey G. Andrews,et al.  User Association for Load Balancing in Heterogeneous Cellular Networks , 2012, IEEE Transactions on Wireless Communications.

[14]  Catherine Rosenberg,et al.  Joint Resource Allocation and User Association for Heterogeneous Wireless Cellular Networks , 2013, IEEE Transactions on Wireless Communications.

[15]  Toshiaki Uemukai,et al.  Dynamic TDMA slot assignment in ad hoc networks , 2003, 17th International Conference on Advanced Information Networking and Applications, 2003. AINA 2003..

[16]  Mohamad Assaad.  Optimal Fractional Frequency Reuse (FFR) in Multicellular OFDMA System , 2008, 2008 IEEE 68th Vehicular Technology Conference.

[17]  Theodore S. Rappaport,et al.  Wireless communications - principles and practice , 1996 .

[18]  H. Vincent Poor,et al.  Collaborative beamforming for distributed wireless ad hoc sensor networks , 2005, IEEE Transactions on Signal Processing.

[19]  Catherine Rosenberg,et al.  Resource Allocation, Transmission Coordination and User Association in Heterogeneous Networks: A Flow-Based Unified Approach , 2013, IEEE Transactions on Wireless Communications.

[20]  G. K. Chan.  Effects of sectorization on the spectrum efficiency of cellular radio systems , 1992 .

[21]  Wentao Zhao,et al.  Cell planning for heterogeneous cellular networks , 2013, 2013 IEEE Wireless Communications and Networking Conference (WCNC).

[22]  Hujun Yin,et al.  OFDMA: A Broadband Wireless Access Technology , 2006, 2006 IEEE Sarnoff Symposium.

[23]  Mahmoud Naghshineh,et al.  Channel assignment schemes for cellular mobile telecommunication systems: A comprehensive survey , 2000, IEEE Communications Surveys & Tutorials.

[24]  Jeffrey G. Andrews,et al.  Coverage and ergodic rate in K-tier downlink heterogeneous cellular networks , 2011, 2011 49th Annual Allerton Conference on Communication, Control, and Computing (Allerton).

[25]  Jeffrey G. Andrews,et al.  Femtocells: Past, Present, and Future , 2012, IEEE Journal on Selected Areas in Communications.

[26]  Eitan Altman,et al.  Optimizing cell size in Pico-cell networks , 2009, WiOpt.

[27]  Young-June Choi,et al.  QoS scheduling for multimedia traffic in packet data cellular networks , 2003, IEEE International Conference on Communications, 2003. ICC '03..

[28]  Catherine Rosenberg,et al.  Joint channel allocation and user association for heterogeneous wireless cellular networks , 2011, 2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications.

[29]  Yongbin Wei,et al.  A survey on 3GPP heterogeneous networks , 2011, IEEE Wireless Communications.

[30]  Jeffrey G. Andrews,et al.  Modeling and Analysis of K-Tier Downlink Heterogeneous Cellular Networks , 2011, IEEE Journal on Selected Areas in Communications.

[31]  Jaunty T. Y. Ho.  QoS-, Queue-and Channel-Aware Packet Scheduling for Multimedia Services in Multiuser SDMA/TDMA Wireless Systems , 2008, IEEE Transactions on Mobile Computing.