Licensed band communication systems have recently begun trying to utilize unlicensed bands. Due to lack of coordination, however, this spectrum utilization results in strong interference to other unlicensed band equipment (UBE). This problem highlights the need for coexistence scenario that will prevent UBE performance degradation. In this paper, we propose a new access control mechanism for downlink cellular networks using the unlicensed band. First, we analyze the impact of the cellular networks on the UBE outage performance. Based on the analysis, we then obtain a decision threshold for the unlicensed band access control. In the proposed control mechanism, the decision threshold is adaptively controlled by considering the density of the UBE. The numerical results demonstrate that the proposed access control mechanism guarantees the UBE's target performance under various network circumstances.
|Title of host publication||2015 IEEE 82nd Vehicular Technology Conference, VTC Fall 2015 - Proceedings|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Publication status||Published - 2016 Jan 25|
|Event||82nd IEEE Vehicular Technology Conference, VTC Fall 2015 - Boston, United States|
Duration: 2015 Sep 6 → 2015 Sep 9
|Name||2015 IEEE 82nd Vehicular Technology Conference, VTC Fall 2015 - Proceedings|
|Other||82nd IEEE Vehicular Technology Conference, VTC Fall 2015|
|Period||15/9/6 → 15/9/9|
Bibliographical notePublisher Copyright:
© 2015 IEEE.
All Science Journal Classification (ASJC) codes
- Computer Networks and Communications
- Automotive Engineering
- Hardware and Architecture