Ultra-massive multiple-input multiple-output (MIMO) is expected to be one of the key
enablers in the forthcoming 6G networks to handle various user demands by exploiting …

Software Defined Radio (SDR)-enabled cognitive radio network architectures are expected
to play an important role in the future 5G networks. Despite the increased research interest …

A low-cost spectrum analyzer is presented, based on a commercial software defined radio
and an open-source application package. Fundamentals regarding the receiving operation …

In cognitive radio, the secondary users are able to sense the spectral environment and use
this information to opportunistically access the licensed spectrum in the absence of the …

得益于空间复用能力, 超大规模多输入多输出(Multiple Input Multiple Output, MIMO)
技术成为未来第六代通信提供高速数据服务和全球海量网络接入的关键技术之一 …

In this paper, we study the problem of multi-user inter-satellite communications in a network
of small satellites and design and implement of an optimum CDMA-based multiple access …

Cognitive radio (CR) technology is a potential solution to the spectrum scarcity problem. In
CR systems, the availability of the licensed spectrum portion is monitored by the spectrum …

Cognitive radio (CR) enables spectrum sharing by allowing new unlicensed services from
secondary users to operate in pre‐allocated bands in an opportunistic manner. TV white …

Spectral efficiency persists as an issue with the increasing demand for interconnectivity and
applications involving IoT. In this work, we present a low cost, modified energy detection …

Wireless network deployments in industry often grow organically with new technologies
added over time, among which many use the non-licensed spectrum to avoid licensing …