Resource Allocation with Random Orientation Using the Greedy Algorithm Method for Visible Light Communication

Abstract

Visible Light Communication Technology (VLC) is a communication technology that has a large capacity in sending data. The allocation process is needed to improve the system quality in its implementation. This research will be focused to the process of allocating time slots to User Equipment (UE) by scheduling Greedy Algorithm. UE distribution is spreaded randomly in a 5x5x4 meter room with amounts from 6 to 24 UE and each direction of UE is changed gradually between 0°,15°, and 30°. The test results shows that the average of the total increase value in system channel capacity to variations of UE increases 0.034% when the system using the scheduling Greedy algorithm and it requires power consumption which 2.19 times more efficient. Changing the receiver’s point of view to 30° results in an average total channel capacity of 1444.096 Mbps and the highest at 0° with 1503.478 Mbps in variations of the UE, then the fairness value of the system is affected by the available UE. The highest fairness value is 0.833 when the number of UE is 6 while the lowest fairness value is 0.208 when there are 24 UE in the system. This is prove that with adding the amounts of UE can increase the total channel capacity and reduce the value of fairness system.