TY - GEN
T1 - Sense-and-predict
T2 - 2017 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2017
AU - Kim, Jeemin
AU - Ko, Seung Woo
AU - Cha, Han
AU - Kim, Seong Lyun
PY - 2017/5/5
Y1 - 2017/5/5
N2 - Opportunity detection at secondary transmitters (TXs) is a key technique enabling cognitive radio (CR) networks. Such detection however cannot guarantee reliable communication at secondary receivers (RXs), especially when their association distance is long. To cope with the issue, this paper proposes a novel MAC called sense-and-predict (SaP), where each secondary TX decides whether to access or not based on the prediction of the interference level at RX. Firstly, we provide the spatial interference correlation in a probabilistic form using stochastic geometry, and utilize it to maximize the area spectral efficiency (ASE) for secondary networks while guaranteeing the service quality of primary networks. Through simulations and testbed experiments using USRP, SaP is shown to always achieve ASE improvement compared with the conventional TX based sensing.
AB - Opportunity detection at secondary transmitters (TXs) is a key technique enabling cognitive radio (CR) networks. Such detection however cannot guarantee reliable communication at secondary receivers (RXs), especially when their association distance is long. To cope with the issue, this paper proposes a novel MAC called sense-and-predict (SaP), where each secondary TX decides whether to access or not based on the prediction of the interference level at RX. Firstly, we provide the spatial interference correlation in a probabilistic form using stochastic geometry, and utilize it to maximize the area spectral efficiency (ASE) for secondary networks while guaranteeing the service quality of primary networks. Through simulations and testbed experiments using USRP, SaP is shown to always achieve ASE improvement compared with the conventional TX based sensing.
UR - http://www.scopus.com/inward/record.url?scp=85020025983&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85020025983&partnerID=8YFLogxK
U2 - 10.1109/DySPAN.2017.7920787
DO - 10.1109/DySPAN.2017.7920787
M3 - Conference contribution
AN - SCOPUS:85020025983
T3 - 2017 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2017
BT - 2017 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2017
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 6 March 2017 through 9 March 2017
ER -