IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) e-ISSN: 2278-2834,p- ISSN: 2278-8735.Volume 9, Issue 5, Ver. V (Sep - Oct. 2014), PP 89-99 www.iosrjournals.org www.iosrjournals.org 89 | Page Location-Based Knowledge Handover Optimization (LBKHO) Algorithm for mobile Network Nagwan Abdel-wahab Mohamed Khair 1 , Ashraf GasimElsid 2 , Amin Babiker A/Nabi 3 1 (Department of Data and Communication Network, Al Neelin University/ Faculty of Engineering, Khartoum, Sudan. 2 (Department of Electronics Engineering, Collage of Engineering, Sudan University and Faculty of Telecommunication and Space Technology, Future University, Khartoum, Sudan) 3 (Department of Communication Engineering, Al Neelin University/ Faculty of Engineering, Khartoum, Sudan.) Abstract: Handover is a very important process in any mobile communication network because it allows the call continuation with high mobility and to supply Quality of Service (QoS) to the users. However the handover increases the signaling load in the network and increase the mobile battery consumption. Location based service offered a great opportunity for application development in the mobile field. In this paper Location- Based Knowledge Handover Optimization algorithm (LBKHO) is proposed, the location based knowledge is used to improve the network performance by reducing the number of handover request, which reduces the signaling load in the network. From our the simulation results show that the proposed algorithm (LBKHO) has reduced the number of handover requests and the number of failed handovers, and when compared with the model (Adaptive Handover Initialization Region) proposed in a previous study, found that requests for handover in the proposed in our algorithm much less. Which reduces the signaling load in the network so that network performance can be improved. Keywords: Cellular Network, Location-Based, Handover Optimization, Horizontal Handover, Cell Breathing I. Introduction The most important characteristic of mobile communications systems has provided services at anytime and anywhere for the fixed and mobile users with different speeds within the area of coverage. So service providers in those systems always attempt to provide high quality services using different wireless communication technologies, but in despite of that, there are techniques when the using is increasing could increase the signaling load in the network also may increase the pressure on the system. On the other hand the system could not dispense with it, such as the handover process because its existence can guarantee to the user continuity contact during movement, that is why studies still ongoing the reduction of the negative effects which may weaken the performance of the network. In cellular systems, the area which should be responsible for the provision of wireless services has a specific service provider, divided into small service areas each one of them called a cell. And they covered by the base station (BS), which in turn serve the mobile phone users known as mobile stations (MS) which located within that area by a wireless link. Cells are divided into groups, each group controlled by what called Mobile Switching Center (MSC). A fixed number of channels allocated to each base station and also ensure continuity of contact when the user moves from one cell to another neighboring cells, which interfere with each other [1], [2]. The process in which changing the channel (frequency, time slot, spreading code, or combination of them) associated with continuous contact during the user movement called handover process [3]. Channel in cellular systems can take based on the multiple access technique used fixed frequency bandwidth (FDMA), a specific time-slot within a frame (TDMA), or a particular code (CDMA) [2]. One of the most important mobile communication system issues is using spectrum efficiently, in other word using the same frequency channels for maximum possible by reusing the same channels in other cells to support the large number of synchronized calls. There are several strategies or schemas may use in spectrum management, the most important the fixed channel scheme, which is assigned a specific set of channels per cell. And the same set of channels can be reused in another cell, away first cell) to an appropriate distance (to ensure that there is no overlap between the channels or be accepted. This scheme is used in most cellular systems because it is simple, but there is a problem when the calls are increased more than the number of channels in the cell that cause the number of blocked calls becomes greater, and to reduce this problem they used the channel