Context Information Based Initial Cell Search for Millimeter Wave 5G Cellular Networks

Millimeter wave (mmWave) communication is envisioned as a cornerstone to fulfill the data rate requirements for fifth generation (5G) cellular networks. In mmWave communication, beamforming is considered as a key technology to combat the high path-loss, and unlike in conventional microwave communication, beamforming may be necessary even during initial access/cell search. Among the proposed beamforming schemes for initial cell search, analog beamforming is a power efficient approach but suffers from its inherent search delay during initial access. In this work, we argue that analog beamforming can still be a viable choice when context information about mmWave base stations (BS) is available at the mobile station (MS). We then study how the performance of analog beamforming degrades in case of angular errors in the available context information. Finally, we present an analog beamforming receiver architecture that uses multiple arrays of Phase Shifters and a single RF chain to combat the effect of angular errors, showing that it can achieve the same performance as hybrid beamforming

Self-organizing hierarchical particle swarm optimization of correlation filters for object recognition

Advanced correlation filters are an effective tool for target detection within a particular class. Most correlation filters are derived from a complex filter equation leading to a closed form filter solution. The response of the correlation filter depends upon the selected values of the optimal trade-off (OT) parameters. In this paper, the OT parameters are optimized using particle swarm optimization with respect to two different cost functions. The optimization has been made generic and is applied to each target separately in order to achieve the best possible result for each scenario. The filters obtained using standard particle swarm optimization (PSO) and hierarchal particle swarm optimization (HPSO) algorithms have been compared for various test images with the filter solutions available in the literature. It has been shown that optimization improves the performance of the filters significantly

Heterogeneity in Phenotype of Usher-Congenital Hyperinsulinism Syndrome:Hearing Loss, Retinitis Pigmentosa, and Hyperinsulinemic Hypoglycemia Ranging from Severe to Mild with Conversion to Diabetes

OBJECTIVE: To evaluate the phenotype of 15 children with congenital hyperinsulinism (CHI) and profound hearing loss, known as Homozygous 11p15-p14 Deletion syndrome (MIM #606528). RESEARCH DESIGN AND METHODS: Prospective clinical follow-up and genetic analysis by direct sequencing, multiplex ligation-dependent probe amplification, and microsatellite markers. RESULTS: Genetic testing identified the previous described homozygous deletion in 11p15, USH1C:c.(90+592)_ABCC8:c.(2694–528)del. Fourteen patients had severe CHI demanding near-total pancreatectomy. In one patient with mild, transient neonatal hypoglycemia and nonautoimmune diabetes at age 11 years, no additional mutations were found in HNF1A, HNF4A, GCK, INS, and INSR. Retinitis pigmentosa was found in two patients aged 9 and 13 years. No patients had enteropathy or renal tubular defects. Neuromotor development ranged from normal to severe delay with epilepsy. CONCLUSIONS: The phenotype of Homozygous 11p15-p14 Deletion syndrome, or Usher-CHI syndrome, includes any severity of neonatal-onset CHI and severe, sensorineural hearing loss. Retinitis pigmentosa and nonautoimmune diabetes may occur in adolescence

The Islamic Legal System in Singapore

In a country that is staunchly secular, it would appear to be an anomaly that the Muslim minority are free to practice their personal law when it comes to marriage, divorce, and to a certain extent inheritance. This article seeks to provide a general overview of the introduction and applicability of Muslim law in Singapore, from the colonial administration of the British to the contemporary period. The article also examines the infrastructure developed for implementing the Muslim law in Singapore and explores conflicts in jurisdiction between the country’s Syariah Court and the civil courts. Written from the perspective of a lawyer practicing in both the civil and Syariah courts, this article presents the tensions and also the desire for harmonization between the two systems

ADMINISTRATIVE CORRUPTION AND GOOD GOVERNANCE IN IRAQ: FINDING AND ANALYSIS

The good governance in Iraq can only be achieved when the corruption in the public sector is eliminated. This can be achieved only when there is an equality at work among the public servants in order for them to achieve job satisfaction in terms of their salaries and job description. It was found that job satisfaction is the main factor that contributes to the reduction of corruption. This article discusses the relationship between good governance and the administrative corruption. It outlines the findings and results that have been done among public servants. This study was made possible by all the public servants who have contributed to the findings by filling up the questionnaires which reflected real opinions and thoughts on corruption and the effort towards good governance in Iraq. The survey participants also left valuable feedbacks with regard to the questions. The feedbacks were very useful as more insights gained on the applications of good governance in Iraq and the quest for seeking real and conceptual reasons corruption takes place in Iraq

Toward RIS-Enhanced Integrated Terrestrial/Non-Terrestrial Connectivity in 6G

The next generation of wireless systems will take the concept of communications and networking to another level through the seamless integration of terrestrial, aerial, satellite, maritime and underwater communication systems. Reconfigurable intelligent surface (RIS) is an innovative technology which, with its singular features and functionalities, can expedite the realization of this everywhere connectivity. Motivated by the unparalleled properties of this innovatory technology, this article provides a comprehensive discussion on how RIS can contribute to the actualization and proper functioning of future integrated terrestrial/non-terrestrial (INTENT) networks. As a case study, we explore the integration of RIS into non-orthogonal multiple access (NOMA)-based satellite communication networks and demonstrate the performance enhancement achieved by the inclusion of RIS via numerical simulations. Promising directions for future research in this area are set forth at the end of this article.Comment: This work has been accepted for publication in IEEE Networ

ADMINISTRATIVE CORRUPTION AND GOOD GOVERNANCE IN IRAQ: FINDING AND ANALYSIS

The good governance in Iraq can only be achieved when the corruption in the public sector is eliminated. This can be achieved only when there is an equality at work among the public servants in order for them to achieve job satisfaction in terms of their salaries and job description. It was found that job satisfaction is the main factor that contributes to the reduction of corruption. This article discusses the relationship between good governance and the administrative corruption. It outlines the findings and results that have been done among public servants. This study was made possible by all the public servants who have contributed to the findings by filling up the questionnaires which reflected real opinions and thoughts on corruption and the effort towards good governance in Iraq. The survey participants also left valuable feedbacks with regard to the questions. The feedbacks were very useful as more insights gained on the applications of good governance in Iraq and the quest for seeking real and conceptual reasons corruption takes place in Iraq