We study a downlink non-orthogonal multiple access (NOMA) system, in which a base station (BS) serves a near user and a far user on the same frequency band simultaneously. Due to physical obstacles or heavy shadowing, there is no direct link from the B…
Orthogonal frequency division multiplexing (OFDM) waveform is promising to converge communications and sensing functionalities for future wireless applications. This paper presents a novel method to improve the OFDM-based sensing accuracy by estimating…
To better support the emerging vehicular applications and multimedia services, vehicular edge computing (VEC) provides computing and caching services in proximity to vehicles, by reducing network transmission latency and alleviating network congestion….
With the explosive growth of interconnected smart devices and sensors, the Internet has been entering the Internet of things (IoT) era and revolutionizing many aspects of our daily life. Meanwhile, crowdsourcing has been considered as a promising techn…
Nowadays, cloud computing has been identified as new opportunities for migrating to the expected agility, reuse, and adaptive capabilities that can support the ever changing IT trends and requirements. Unfortunately, the rapid evolution of those techno…
Due to its wide coverage, stable link, and low latency, cellular network has become one of the main access networks for Internet of things (IoT). However, the expenses of backhauls and node charging grow fast with the number of nodes. Towards this issu…
Ubiquitous information exchange is achieved among connected vehicles through the increasingly smart environment. The concept of conventional vehicular ad hoc network is gradually transformed into the Internet of vehicles (IoV). Meanwhile, more and more…
Beam scheduling is one of the most important issues regarding data relay satellite systems, which can improve the utilization efficiency of limited system resources by programming beam allocation for relay missions. The ever-increasing relay missions c…
Resource allocation is a fundamental and vital issue for arbitrary wireless networks, which can guarantee the network to run efficiently and stably. Especially, in the 5G and future 6G networks, numerous distinct wireless network service demands will b…
In the 1940s, Claude Shannon developed the information theory focusing on quantifying the maximum data rate that can be supported by a communication channel. Guided by this fundamental work, the main theme of wireless system design up until the fifth g…