Due to the resource-constrained of Internet of things (IoT) devices, the traditional cryptography protocols are not suitable for IoT environments. When they can be implemented, their performances often are not acceptable. As a result, a lightweight pro…
In this paper, we propose a reconfigurable intelligent surface (RIS) assisted over-the-air federated learning (FL), where multiple antennas are deployed at each edge device to enable simultaneous multidimensional model transmission over a millimeter wa…
To support the needs of ever-growing cloud-based services, the number of servers and network devices in data centers is increasing exponentially, which in turn results in high complexities and difficulties in network optimization. Machine learning (ML)…
In recent years, federated learning (FL) has played an important role in private data-sensitive scenarios to perform learning tasks collectively without data exchange. However, due to the centralized model aggregation for heterogeneous devices in FL, t…
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…
The performance of wireless communication systems is fundamentally constrained by the random and uncontrollable wireless channel. By leveraging the recent advances in digitally-controlled metasurface, intelligent reflecting surface (IRS) has emerged as…