Abstract-In this work we present a case for dynamic spectrum sharing between different operators in systems with carrier aggregation (CA) which is an important feature in 3GPP LTE-A systems. Cross-carrier scheduling and sensing are identified as key enablers for such spectrum sharing in LTE-A. Sensing is classified as Type 1 sensing and Type 2 sensing and the role of each in the system operation is discussed. The more challenging Type 2 sensing which involves sensing the interfering signal in the presence of a desired signal is studied for a single-input singleoutput system. Energy detection and the most powerful test are formulated. The probability of false alarm and of detection are analyzed for energy detectors. Performance evaluations show that reasonable sensing performance can be achieved with the use of channel state information, making such sensing practically viable.
Most related to this paper, in REF , dynamic spectrum sharing between different operators was shown to achieve reasonable sensing performance in 3GPP LTE-A systems with carrier aggregation.
Sensing for spectrum sharing in cognitive LTE-A cellular networks
2014 IEEE Wireless Communications and Networking Conference (WCNC)
2014 IEEE Wireless Communications and Networking Conference (WCNC)
Computer Science Mathematics