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:Christopher Chembe , Rafidah Md Noor ...
来源:[J].Computer Communications(IF 1.079), 2016, Vol.97
摘要:Abstract(#br)Vehicular Ad Hoc Network (VANET) is envisaged to play an important role in the safety of drivers and passengers when moving on the roads. However, VANET still faces many challenges before it could be deployed. One such challenge is shortage of radio frequency spectru...
作者:Michael Oche , Rafidah Md Noor , Christopher Chembe
来源:[J].Computer Communications(IF 1.079), 2016, Vol.104
摘要:Abstract(#br)Though absolute QoE assessment, requires a subjective approach, performing a subjective test to assess real-time multimedia quality is expensive in terms of time and resources. The process involved in subjective approach is not suited for assessing real-time multimed...
作者:Christopher Chembe , Douglas Kunda ...
来源:[J].Vehicular Communications, 2019, Vol.18
摘要:Abstract(#br)Spectrum sensing is one of the fundamental functionality performed by a cognitive radio to identify vacant radio spectrum for dynamic spectrum access (DSA). However, there are many challenges still existing before the benefits of DSA can be realized. The challenges i...
作者:Christopher Chembe , Ismail Ahmedy ...
来源:[J].Malaysian Journal of Computer Science (ISSN 0127-9084)(IF 0.161), 2019, Vol.32 (2)
摘要:Spectrum sensing is one of the core functionality of a cognitive radio system. Accurate identification of primarysystem signal can prevent interference and provide maximum protection to licensed users. However, manychallenges associated with spectrum sensing still exist. Examples...
作者:Douglas Kunda , Christopher Chembe , George Mukupa
来源:[J].Journal of Technology and Science Education, 2018, Vol.8 (4), pp.360-384
摘要:This paper investigates factors that influence Zambian higher education lecturer’s attitude towards integrating ICTs in research and teaching. To determine these factors, we used online administered survey with a total of 163 respondents from public and private higher educat...
作者:Christopher Chembe , Ismail Ahmedy ...
来源:[C].Communications and Broadband Networking2018
摘要:Dynamic spectrum access (DSA) has received much attention in research community recently. DSA is the concept in which communication devices of unlicensed users are allowed to access underutilized spectrum in licensed frequency bands. DSA relies on cognitive radio (CR) technology ...

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

×