Channel Assignment Augmentation Algorithm to Mitigate Interference for Heterogeneous 'TV White Space' Users
| Autor: | Humayra Ahmed, Asaduzzaman |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Channel allocation schemes
Computer science business.industry 05 social sciences Bandwidth (signal processing) 050801 communication & media studies 020206 networking & telecommunications 02 engineering and technology User requirements document Base station 0508 media and communications White spaces 0202 electrical engineering electronic engineering information engineering Wireless Graph coloring business Algorithm Communication channel |
| Zdroj: | 2018 Joint 7th International Conference on Informatics, Electronics & Vision (ICIEV) and 2018 2nd International Conference on Imaging, Vision & Pattern Recognition (icIVPR). |
| DOI: | 10.1109/iciev.2018.8641003 |
| Popis: | TV White Space (TVWS) spectrum utilization is totally a new idea in wireless communication technology. It refers to some portion of TV spectrum that is not used by TV channels and available for other applications. This unused spectrum has been opened up for the free and unlicensed users. This spectrum can be utilized greatly if a noninterference environment is created between the users of this spectrum. Therefore, a coexistence of multiple networks requires interference management. In this paper, an interference management algorithm is developed. It ensures that a network can access the TVWS spectrum without causing interference to other networks. This is done by using three stages. The first stage is for finding the group of networks that will not cause interference to one another. For this "graph coloring" algorithm is used. The second stage is for assigning different channels to each group of networks. Here, channel assignment gives priority to the user requirement of each group. If any bandwidth is left after second stage, then the third stage is performed where performance of each network will be increased. This is done by considering the number of networks in a group. Simulation results show that the proposed scheme provides better channel assignment along with bandwidth utilization. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|