JWCN_V4_N4_RP1 Hanafy M. Ali Journal On Wireless Communication Networks 2320 - 2351 4 4 1 9 Mobility Manager, WSN, WMSN, 3D Visualization, Castalia, OMNET++, Network Simulator The mobility manager specifies the way the nodes move through space during simulation. It holds location state that other modules can access at any time using a function call, and it notifies the wireless channel periodically of the position of a node. According to Castalia Manual, it implements only one mobility pattern module, the simple Line Mobility Manager. This will allow the user to define a simple line as a path for his node. Therefore, nodes can only move with this line. The user just describes the destination point of a line segment (starting point is the starting location of the node) and thus defines a trajectory for the node to move back and forth. Additionally, Castalia has no 3D visualization engine, and therefore users cannot visualize their simulated nodes and space in 3D. In this paper, an enhanced mobility manager will be presented to overcome many drawbacks of Castalia's traditional mobility manager. The presented mobility manager can deal with paths rather than lines. This will allow users to simulate nodes moving with any possibilities within the simulation space. Additionally, a 3D visualization engine will be integrated so that users can visualize their simulated 3D spaces and node easily. January - March 2016 Copyright © 2016 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=5909