Search

A lock‐detector for the digital phase interpolator based clock and dada recovery circuit (PI‐CDR) is proposed. The simple method could commendably lock the PI‐control code when the CDR is locked, which eliminates the systematic phase noise of the recovered clock without reducing the jitter tolerance ability. The proposed architecture is implemented in 0.13 μm CMOS and occupies area of 0.18 mm2. [ABSTRACT FROM AUTHOR]

Moving relays (MRs) have been proposed as a promising technology to improve the coverage performance of vehicular users. However, how MRs can influence non‐vehicular users is not yet studied. Using stochastic geometry, statistical analyses on the coverage performance of non‐vehicular users in the MR enabled cellular networks are made. An analytical framework for analysing downlink signal‐to‐interference ratio under the presence of MRs is developed. Based on the proposed framework, tractable expressions for coverage probability of non‐vehicular users connecting to MRs and macro base stations are derived, respectively. Simulation results verify the derived expressions. These analytical results show that non‐vehicular users can also improve their coverage performance by the MRs. [ABSTRACT FROM AUTHOR]

Device‐to‐device communication fulfils its potential in terms of high resource utilisation, thus it has been a hot topic in the recent long‐term evolution standardisation process. The general scenario with multiple resource pool multiplexing instead of the one‐time reusing is considered. Meanwhile, the optimisation target focuses on device energy efficiency under certain system throughput insurance rather than the traditional system throughput. A modified genetic algorithm‐based scheme is applied to address the facing non‐deterministic polynomial‐time hard problem with higher convergence and lower complexity. [ABSTRACT FROM AUTHOR]