The present invention provides multi-hop wireless commu nication systems that easily
realize a highly-efficient and highly reliable bi-directional wireless relay transmission by …

LoRaWAN (Long Range Wide Area Network), a type of LPWAN (Low Power Wide Area
Network), has gained popularity for enabling long-distance data transmission with low …

Efficient bi-directional multi-hop wireless networks based on MIMO algorithm or network
coding have been proposed in recent literatures. In this paper, a new technique named as …

Free probability theory, which has become a main branch of random matrix theory, is a
valuable tool for describing the asymptotic behavior of multiple systems, especially for large …

Spatial spectrum sharing with MIMO cognitive radio is efficient and attractive for wireless
systems with limited communication resources. MIMO cognitive radio is a kind of cognitive …

In this paper, we propose a novel multi-antenna utilization scheme for avoiding the packet
congestion around the gateway (GW) of the ad-hoc wireless networks. In our previous work …

Efficient bi-directional multi-hop wireless networks based on MIMO algorithm or network
coding have been proposed in recent papers. This paper proposes a new technique named …

Based on Free Probability Theory (FPT), which has become an important branch of Random
Matrix Theory (RMT), a new scheme of frequency band sensing for Cognitive Radio (CR) in …

We propose a new cross-layer approach to mitigate interference in multihop networks.
Precisely, we cancel all adjacent node interference in a multihop path by MIMO two-way …

In multiple-hop relay systems, the system channel capacity is restricted by the bottleneck
relay. In order to prevent some relays from being the bottleneck and guarantee the system …