Cell Selection in Wireless Two-Tier Networks: A Context-Aware Matching Game

The deployment of small cell networks is seen as a major feature of the next generation of wireless networks. In this paper, a novel approach for cell association in small cell networks is proposed. The proposed approach exploits new types of information extracted from the users' devices and environment to improve the way in which users are assigned to their serving base stations. Examples of such context information include the devices' screen size and the users' trajectory. The problem is formulated as a matching game with externalities and a new, distributed algorithm is proposed to solve this game. The proposed algorithm is shown to reach a stable matching whose properties are studied. Simulation results show that the proposed context-aware matching approach yields significant performance gains, in terms of the average utility per user, when compared with a classical max-SINR approach.Comment: 11 pages, 11 figures, Journal article in ICST Wireless Spectrum, 201

An F-statistic based multi-detector veto for detector artifacts in continuous-wave gravitational wave data

Continuous gravitational waves (CW) are expected from spinning neutron stars with non-axisymmetric deformations. A network of interferometric detectors (LIGO, Virgo and GEO600) is looking for these signals. They are predicted to be very weak and retrievable only by integration over long observation times. One of the standard methods of CW data analysis is the multi-detector F-statistic. In a typical search, the F-statistic is computed over a range in frequency, spin-down and sky position, and the candidates with highest F values are kept for further analysis. However, this detection statistic is susceptible to a class of noise artifacts, strong monochromatic lines in a single detector. By assuming an extended noise model - standard Gaussian noise plus single-detector lines - we can use a Bayesian odds ratio to derive a generalized detection statistic, the line veto (LV-) statistic. In the absence of lines, it behaves similarly to the F-statistic, but it is more robust against line artifacts. In the past, ad-hoc post-processing vetoes have been implemented in searches to remove these artifacts. Here we provide a systematic framework to develop and benchmark this class of vetoes. We present our results from testing this LV-statistic on simulated data.Comment: 2 pages, 1 figure, to be published in Proceedings of Statistical Challenges in Modern Astronomy V, Springer 201

MAPPING OF KASHMIR CONFLICT UNDER NUGGET MODEL

The flawed and awfully-crafted Partition Formula applied by the British in the Subcontinent (in 1947) sowed the seeds of conflict between India and Pakistan while leaving the State of Jammu and Kashmir in gloominess. Consequently, both countries soon indulged in an armed conflict known as the ‘Kashmir Conflict’ due to which this whole region has remained volatile and subjected to instability. India’s illegal occupation of Muslim-majority areas of Jammu and Kashmir (IIOJK), a complete denial of the Right of Self-determination to innocent Kashmiris (a clear violation of the UNSC resolutions), and the abolition of Kashmiris’ Special Status through hasty constitutional amendments (a clear reflection of Hindutva mindset) indicate afresh rise to indigenous struggle in IIOJK. For that matter, India is cunningly engaged in false propaganda campaigns against Pakistan, in which it blames Pakistan for providing support to Kashmiri freedom fighters. India’s irresponsible State-behaviour is quite evident from recent occurrences like Pulwama incident and release of Indian pilot, Wing Commander Abhinandan Virthaman, by Pakistan. In such a tense regional setting, this paper examines the historical aspect of the Kashmir conflict while discussing different related issues between Pakistan and India by using the Nugget Model. This conflict-analysis tool helps an indepth understanding of the Kashmir conflict and leads to identify root causes that are accelerating the conflict day-by-day.   Bibliography Entry Javed, Maham. 2020. "Mapping of Kashmir Conflict under Nugget Model." Margalla Papers 24 (2): 114-128

Exploring the Nexus Between Culture, Values, Institutions, Happiness and Philanthropy: A Global Evidence

The main aim of this study was to investigate the impact of culture, values, institutions, and happiness on the world’s philanthropy. Culture is measured by Hofstede index (i.e. individualism-collectivism, masculinity-femininity, long and short-run orientation, uncertainty avoidance, power distance, and indulgence-restraint). The measurement of value is WVS (World Value Survey) and it consists of the emotion of happiness, active/ inactive membership of a church or religious organization, important in life; religion, confidence on charitable/ humanitarian organization and active/ inactive membership of charitable/ humanitarian organization. Institutions are measured by WGI (World Governance Indicators) and it consists of corruption, regulatory quality, accountability and voice, rule of law, political stability and government effectiveness, the sub-variables of happiness (index) are social support, freedom to take decisions and generosity and world’s philanthropy is measured by CAF (Charitable Aid Foundation) world giving index. We have gathered panel data (from the period 2010 to 2014) of CAF index, happiness index and WGI of 62 countries and cross-sectional data of CAF index, Hofstede index, WGI, happiness index and WVS of 24 countries. The result (of panel data) shows that there is a significant relation of WGI, social support and freedom of choice with CAF index whereas there is an insignificant connection between generosity and CAF index. The findings (of cross-sectional data of all factors combined) shows that there is a relation of the Hofstede index and happiness index with the CAF index while there is no linkage of WGI and WVS with the CAF index. The study suggests that charitable organizations should personify their value in order to build trust among the public. Countries should improve their governance because this will lead to equality and by doing this countries will also manage their resources efficiently and effectively. Keywords: Culture, Value, Institution, Happiness, Philanthropy, Cross Country DOI: 10.7176/RHSS/10-3-05 Publication date: February 29th 2020