全部文献期刊会议图书|学者科研项目
中外文文献  中文文献  外文文献
作者:Yong Jin , Yunshan Hou , Zhentao Hu ...
来源:[J].Wireless Personal Communications(IF 0.428), 2017, Vol.96 (4), pp.6183-6195
摘要:In the cognitive relay network, due to the different fading characteristics of communication links, not all relay nodes have constructive impacts on the system performance. A relay selection algorithm is proposed to obtain the minimum relay transmission power while satisfyin...
作者:Shaojiang Liu , Kejing Hu , Weichuan Ni ...
来源:[J].Wireless Communications and Mobile Computing(IF 0.863), 2019, Vol.2019
摘要:In cognitive relay networks, the cognitive user opportunistically accesses the authorized spectrum segment of the primary user and simultaneously serves as the data relay node of the primary user while sharing the spectrum resource of the primary user. This not only improves the ...
作者:Chi Xu , Meng Zheng , Wei Liang ...
来源:[J].Wireless Personal Communications(IF 0.428), 2017, Vol.95 (3), pp.3097-3117
摘要:This paper investigates the cooperative multihop cognitive relay networks (CRNs) under a novel two-dimensional spatial-temporal opportunity model, in which free opportunity and sharing opportunity are defined to enhance the spectrum efficiency. Correspondingly, a joint spatial-te...
作者:Xinjie Wang , Hao Zhang , Lisheng Fan ...
来源:[J].Wireless Personal Communications(IF 0.428), 2017, Vol.97 (2), pp.3031-3042
摘要:This paper investigated cognitive relay networks with practical distributed switch-and-stay combining (DSSC) protocol when considering the primary transmitter’s interference to secondary network. The closed-form expressions for the outage probability is derived, the correct...
作者:Shengyu Li , Wenjun Xu , Xiaomei Lu ...
来源:[J].EURASIP Journal on Wireless Communications and Networking(IF 0.54), 2015, Vol.2015 (1), pp.1-15
摘要:Abstract(#br)In this paper, multicast beamforming in cognitive relay systems is investigated with the consideration of imperfect channel state information at the transmitter (CSIT). We focus at the design of the optimal signal forwarding matrix at the cognitive relay in both cent...
作者:Shaojiang Liu , Kejing Hu , Weichuan Ni ...
来源:[J].Wireless Communications and Mobile Computing(IF 0.863), 2019, Vol.2019
摘要:In cognitive relay networks, the cognitive user opportunistically accesses the authorized spectrum segment of the primary user and simultaneously serves as the data relay node of the primary user while sharing the spectrum resource of the primary user. This not only improves the ...
作者:Ngoc Phuc Le
来源:[J].Wireless Communications and Mobile Computing(IF 0.863), 2017, Vol.2017
摘要:We study the performance of the secondary relay system in a power-beacon (PB) assisted energy harvesting cognitive relay wireless network. In our system model, a secondary source node and a relay node first harvest energy from distributed PBs. Then, the source node transmits its ...
作者:Xuanxuan Tang , Yueming Cai , Wendong Yang ...
来源:[J].AEUE - International Journal of Electronics and Communications(IF 0.551), 2016, Vol.70 (3), pp.359-366
摘要:Abstract(#br)This work investigates the impact of outdated channel state information (CSI) on the outage performance of decode-and-forward (DF) buffer-aided underlay cognitive relay networks (CRNs). By modeling the transition of the buffer states with a theoretical framework ...
作者:Weiwei Yang , Xiaohui Zhao
来源:[J].EURASIP Journal on Wireless Communications and Networking(IF 0.54), 2017, Vol.2017 (1), pp.1-11
摘要:Abstract(#br)A robust resource allocation (RA) algorithm for cognitive relay networks with multiple primary users considering joint channel uncertainty and interference uncertainty is proposed to maximize the capacity of the networks subject to the interference threshold limi...
作者:Zisheng Cheng , Hongbin Chen , Feng Zhao
来源:[J].EURASIP Journal on Wireless Communications and Networking(IF 0.54), 2018, Vol.2018 (1), pp.1-14
摘要:Abstract(#br)In this paper, adaptive transmission in a cognitive relay network where a secondary transmitter acts as cooperative relay for a primary transmitter while in return gets the opportunity to send its own data is considered. An opportunistic half-duplex (HD)/full-duplex ...

我们正在为您处理中,这可能需要一些时间,请稍等。

资源合作:cnki.scholar@cnki.net, +86-10-82896619   意见反馈:scholar@cnki.net

×