Journal ArticleDOI
Trends in handover design
TLDR
The author presents an overview of published work on handover performance and control and discusses current trends in handover research, and focuses on macrocells, but includes a brief discussion on how things change as cell sizes shrink.Abstract:
Handover is the mechanism that transfers an ongoing call from one cell to another as a user moves through the coverage area of a cellular system. As smaller cells are deployed to meet the demands for increased capacity, the number of cell boundary crossings increases. The author presents an overview of published work on handover performance and control and discusses current trends in handover research. He discusses investigations that are applicable to a single tier of cells. He focuses on macrocells, but includes a brief discussion on how things change as cell sizes shrink. By assuming an overlay of macrocells and microcells he summarizes issues and approaches unique to such systems.read more
Citations
More filters
Journal ArticleDOI
Applications of antenna arrays to mobile communications. I. Performance improvement, feasibility, and system considerations
TL;DR: This paper presents an overview of mobile communications as well as details of how an array may be used in various mobile communications systems, including land-mobile, indoor-radio, and satellite-based systems.
Journal ArticleDOI
An overview of vertical handover decision strategies in heterogeneous wireless networks
TL;DR: An overview of the most interesting and recent vertical handover decision strategies proposed in the literature recently is given, and they are classified into five categories for which they present their main characteristics.
Journal ArticleDOI
Mobility modeling, location tracking, and trajectory prediction in wireless ATM networks
TL;DR: A hierarchical user mobility model is developed that closely represents the movement behavior of a mobile user and that, when used with appropriate pattern matching and Kalman filtering techniques, yields an accurate location prediction algorithm, HLP, or hierarchical location prediction, which provides necessary information for advance resource reservation and advance optimal route establishment in wireless ATM networks.
Journal ArticleDOI
Handoff in hybrid mobile data networks
Kaveh Pahlavan,Prashant Krishnamurthy,Ahmad Hatami,Mika Ylianttila,Juha-Pekka Makela,R. Pichna,J. Vallstron +6 more
TL;DR: An overview of issues related to handoff with particular emphasis on hybrid mobile data networks is presented and five architectures for the example hybrid network, based on emulation of GPRS entities within the WLAN, mobile IP, a virtual access point, and a mobility gateway, are described and compared.
Journal ArticleDOI
A survey of vertical handover decision algorithms in Fourth Generation heterogeneous wireless networks
TL;DR: A comprehensive survey of the VHD algorithms designed to satisfy the required Quality of Service (QoS) requirements of the forthcoming Fourth Generation (4G) heterogeneous wireless networks is presented.
References
More filters
Journal ArticleDOI
The Markov-modulated Poisson process (MMPP) cookbook
TL;DR: The purpose of this paper is to collect a number of useful results about Markov-modulated Poisson processes and queues with Markov -modulated input and to summary of recent developments.
Journal ArticleDOI
Analysis of handoff algorithms using both absolute and relative measurements
Ning Zhang,J.M. Holtzman +1 more
TL;DR: The present authors have extended this analysis by including an additional criterion based on absolute signal strength in the handoff decision algorithm, which is proved to be sufficiently accurate by comparison with simulation.
Proceedings ArticleDOI
Analysis of handover algorithms (microcellular radio)
TL;DR: A lower bound for the probability of lost calls is derived and is valid as long as the signal model is correct and is not limited to the class of linear algorithms.
Journal ArticleDOI
Personal communication systems using multiple hierarchical cellular overlays
Lon-Rong Hu,Stephen S. Rappaport +1 more
TL;DR: An analytical model for teletraffic performance (including hand-off) is developed and shows the carried traffic, traffic distribution, blocking, and forced termination probabilities for users having different mobility characteristics.
Proceedings ArticleDOI
Estimating velocity using diversity reception
TL;DR: This work derived a relationship between the switching rate of the branches N/sub BS/ (times/s), and the Doppler frequency f/sub D/ (Hz): as follows N/ sub BS//spl sime/1.3 f/ sub D/.