Vertical Handover Analysis for Randomly Deployed Small Cells in Heterogeneous Networks

In this paper, we analyze vertical handovers in heterogeneous networks. Vertical handovers are an important ramification of user mobility in a heterogeneous wireless network since they directly impact network performance, such as throughput, packet delay, or call blocking probability. However, the study of vertical handovers faces many difficulties when it comes to analysis, including network modeling which is extremely complicated due to topology diversity. To tackle such analytic challenges, we propose a stochastic geometric analysis scheme on user mobility and small cell networks, in order to capture the impacts of different topologies. We derive a theoretical expression for the expected number of handovers that occur and a corresponding approximation. Our analysis shows that the number of vertical handovers is determined as a concave function of small cell radius $r$ when given the small cell density. Via simulations our analysis is verified in various wireless environments.

[1]  Andrew F. Siegel,et al.  Covering the Circle with Random Arcs of Random Sizes. , 1982 .

[2]  Min Wang,et al.  Handover within 3GPP LTE: Design Principles and Performance , 2009, 2009 IEEE 70th Vehicular Technology Conference Fall.

[3]  S.Kayathri,et al.  Analysis of Shortest Path Routing for Large Multi-Hop Wireless Networks , 2018 .

[4]  Ben Liang,et al.  Handoff Rate Analysis in Heterogeneous Wireless Networks with Poisson and Poisson Cluster Patterns , 2015, MobiHoc.

[5]  Randy H. Katz,et al.  Vertical handoffs in wireless overlay networks , 1998, Mob. Networks Appl..

[6]  Rajiv Misra,et al.  Distributed Algorithm for Resource Allocation in Downlink Heterogeneous Small Cell Networks , 2017 .

[7]  Sheldon M. Ross,et al.  Introduction to probability models , 1975 .

[8]  Yuan Zhou,et al.  A Distributed Resource Reservation Scheme for Handover Failure Reduction , 2015, IEEE Wireless Communications Letters.

[9]  Jeffrey G. Andrews,et al.  Downlink and Uplink Cell Association With Traditional Macrocells and Millimeter Wave Small Cells , 2016, IEEE Transactions on Wireless Communications.

[10]  Panganamala Ramana Kumar,et al.  RHEINISCH-WESTFÄLISCHE TECHNISCHE HOCHSCHULE AACHEN , 2001 .

[11]  Jeehyeon Na,et al.  Adaptive Mobility Load Balancing Algorithm for LTE Small-Cell Networks , 2018, IEEE Transactions on Wireless Communications.

[12]  Qian Huang,et al.  Loss Performance Modeling for Hierarchical Heterogeneous Wireless Networks With Speed-Sensitive Call Admission Control , 2011, IEEE Transactions on Vehicular Technology.

[13]  Suhas N. Diggavi,et al.  Even One-Dimensional Mobility Increases the Capacity of Wireless Networks , 2005, IEEE Transactions on Information Theory.

[14]  Robert W. Heath,et al.  Modeling heterogeneous network interference , 2012, 2012 Information Theory and Applications Workshop.

[15]  Bartłomiej Błaszczyszyn,et al.  Two-Tier Cellular Networks for Throughput Maximization of Static and Mobile Users , 2019, IEEE Transactions on Wireless Communications.

[16]  Dominic C. O'Brien,et al.  Vertical handover-decision-making algorithm using fuzzy logic for the integrated Radio-and-OW system , 2006, IEEE Transactions on Wireless Communications.

[17]  Christian Bettstetter,et al.  Mobility modeling in wireless networks: categorization, smooth movement, and border effects , 2001, MOCO.

[18]  Yoshihisa Kishiyama,et al.  A novel architecture for LTE-B :C-plane/U-plane split and Phantom Cell concept , 2012, 2012 IEEE Globecom Workshops.

[19]  Jeffrey G. Andrews,et al.  Towards Understanding the Fundamentals of Mobility in Cellular Networks , 2012, IEEE Transactions on Wireless Communications.

[20]  Raviraj S. Adve,et al.  Handoff Rate and Coverage Analysis in Multi-Tier Heterogeneous Networks , 2015, IEEE Transactions on Wireless Communications.

[21]  N.B. Shroff,et al.  Analysis of Shortest Path Routing for Large Multi-Hop Wireless Networks , 2009, IEEE/ACM Transactions on Networking.

[22]  Jung Chia Chiu,et al.  Improving handoff performance in wireless overlay networks by switching between two-layer IPv6 and one-layer IPv6 addressing , 2005, IEEE Journal on Selected Areas in Communications.

[23]  Klaus I. Pedersen,et al.  Mobility enhancements for LTE-advanced multilayer networks with inter-site carrier aggregation , 2013, IEEE Communications Magazine.

[24]  Hossam S. Hassanein,et al.  Handoffs in fourth generation heterogeneous networks , 2006, IEEE Communications Magazine.

[25]  Nada Golmie,et al.  Vertical Handoff Decision Algorithms for Providing Optimized Performance in Heterogeneous Wireless Networks , 2009, IEEE Transactions on Vehicular Technology.

[26]  Ian F. Akyildiz,et al.  A survey of mobility management in next-generation all-IP-based wireless systems , 2004, IEEE Wirel. Commun..

[27]  Anthony C. Boucouvalas,et al.  A Probabilistic Threshold-Based Bandwidth Sharing Policy for Wireless Multirate Loss Networks , 2016, IEEE Wireless Communications Letters.

[28]  François Gagnon,et al.  A Novel Utility-Based Handover Decision Policy for a Two-Tier HetNets , 2017, 2017 IEEE 85th Vehicular Technology Conference (VTC Spring).

[29]  Ahmed Helmy,et al.  The IMPORTANT framework for analyzing the Impact of Mobility on Performance Of RouTing protocols for Adhoc NeTworks , 2003, Ad Hoc Networks.

[30]  Ian F. Akyildiz,et al.  Spatial Coverage Cross-Tier Correlation Analysis for Heterogeneous Cellular Networks , 2014, IEEE Transactions on Vehicular Technology.

[31]  Zdenek Becvar,et al.  Dynamic resource allocation exploiting mobility prediction in mobile edge computing , 2016, 2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC).

[32]  Ismail Güvenç,et al.  Handover Count Based Velocity Estimation and Mobility State Detection in Dense HetNets , 2015, IEEE Transactions on Wireless Communications.

[33]  Ness B. Shroff,et al.  Analysis of Connectivity and Capacity in 1-D Vehicle-to-Vehicle Networks , 2016, IEEE Transactions on Wireless Communications.

[34]  Ekram Hossain,et al.  Fundamentals of Mobility-Aware Performance Characterization of Cellular Networks: A Tutorial , 2019, IEEE Communications Surveys & Tutorials.

[35]  Sangchul Oh,et al.  Frequent-Handover Mitigation in Ultra-Dense Heterogeneous Networks , 2019, IEEE Transactions on Vehicular Technology.

[36]  A. Racz,et al.  Handover Performance in 3GPP Long Term Evolution (LTE) Systems , 2007, 2007 16th IST Mobile and Wireless Communications Summit.

[37]  Robert Schober,et al.  User Association in 5G Networks: A Survey and an Outlook , 2015, IEEE Communications Surveys & Tutorials.

[38]  Chia-han Lee,et al.  Handover Analysis of Macro-Assisted Small Cell Networks , 2014, 2014 IEEE International Conference on Internet of Things(iThings), and IEEE Green Computing and Communications (GreenCom) and IEEE Cyber, Physical and Social Computing (CPSCom).

[39]  Eryk Dutkiewicz,et al.  Performance Analysis and Optimization of Handoff Algorithms in Heterogeneous Wireless Networks , 2008, IEEE Transactions on Mobile Computing.

[40]  Tommy Svensson,et al.  Modeling and Analyzing the Cross-Tier Handover in Heterogeneous Networks , 2017, IEEE Transactions on Wireless Communications.

[41]  Juan-Carlos Cano,et al.  An overview of vertical handover techniques: Algorithms, protocols and tools , 2011, Comput. Commun..