Browsing by Subject "Wireless telecommunication systems"
Now showing items 1-20 of 47
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A comparative analysis of BLE and 6LoWPAN for U-HealthCare applications
( IEEE , 2013 , Conference Paper)For decades, there exist a variety of low-power wireless technologies deployed for healthcare applications such as Zigbee/IEEE802.15.4, Bluetooth, ANT, NFC, IrDA. However, the recently announced Bluetooth Low Energy (BLE) ... -
A performance study of dual-hop transmissions with fixed gain relays
( IEEE , 2004 , Article)This letter presents a study on the end-to-end performance of dual-hop wireless communication systems equipped with nonregenerative fixed gain relays and operating over flat Rayleigh-fading channels. More specifically, it ... -
A survey on communication infrastructure for micro-grids
(2013 , Conference Paper)A micro-grid is a small scale power supply network that is designed to provide electricity to a small community with its own renewable energy sources. Due to distributed generation variability, security and load sharing ... -
An enhanced public key infrastructure to secure smart grid wireless communication networks
(2014 , Article)It is expected that the smart grid will radically add new functionalities to legacy electrical power systems. However, we believe that this will in turn introduce many new security risks. With the smart grid's backbone ... -
An evolutionary game theoretic approach for cooperative spectrum sensing
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)Many spectrum sensing techniques have been proposed to allow a secondary user (SU) to utilize a primary user's (PU) spectrum through opportunistic access. However, few of them have considered the tradeoff between accuracy ... -
Analysis of cell spectral efficiency of infrastructure relay-enhanced cellular system
( IEEE , 2011 , Conference Paper)In this paper, we investigate the downlink spectral efficiency of infrastructure relay-enhanced cellular systems. In particular, we use the average achieved spectral efficiency at an arbitrary mobile receiver in presence ... -
Area spectral efficiency of underlay cognitive radio transmission over rayleigh fading channels
( IEEE , 2013 , Conference Paper)Cognitive radio is a promising technology to improve the spectrum utilization by allowing the unlicensed (secondary) user share a frequency bandwidth with the licensed (primary) owner under the condition that no harmful ... -
Carrier aggregation for LTE-advanced: Uplink multiple access and transmission enhancement features
(2013 , Article)Multiple access and transmission enhancement in support of carrier aggregation techniques has been actively studied in the 3GPP LTEAdvanced standardization process of the nextgeneration mobile broadband communication ... -
Centralized-decentralized RB allocation based on genetic algorithm and coordination over X2 interface in LTE uplink
( VDE Verlag GmbH , 2015 , Conference Paper)In this paper, we present a method for resource block allocation for the LTE uplink system. It aims to minimize the inter-cell interference and maximize the channel capacity. The genetic algorithm is used to come up with ... -
Channel secondary random process for robust secret key generation
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)The broadcast nature of wireless communications imposes the risk of information leakage to adversarial users or unauthorized receivers. Therefore, information security between intended users remains a challenging issue. ... -
Comparative simulation for physical layer key generation methods
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)The paper cogitates about a comparative simulation for various distillation, reconciliation, and privacy amplification techniques that are used to generate secure symmetric physical layer keys. Elementary wireless model ... -
Cooperative communications scheme with interference management under ICI for OFDM LTE-A systems
( IEEE Computer Society , 2013 , Conference Paper)In long term evolution (LTE) systems, the achievable cell spectral efficiency is often limited by the inter carrier interference (ICI) or coverage shortage of base stations. Hence, in LTE-Advanced, cooperative communication ... -
Deep learning and low rank dictionary model for mHealth data classification
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)In the context of mobile Health (mHealth) applications, data are prone to several sources of contamination which would lead to false interpretation and misleading classification results. In this paper, a robust deep learning ... -
Doppler compensation for AF two way relaying over time varying UWA channels
( IEEE , 2014 , Conference Paper)In this paper, we consider Doppler compensation for time varying underwater acoustic channels. The underlying system model comprises two sources, S1 and S2, communicating with each other through a relay, R. The transmission ... -
Effective area spectral efficiency for wireless communication networks with interference management
( Springer International Publishing , 2015 , Article)In this paper, we introduce a new metric, namely, effective area spectral efficiency (EASE), to quantify the spectral efficiency as well as the spatial properties of point-to-point transmission systems and decode and forward ... -
EM-MAC: An energy-aware multi-channel MAC protocol for multi-hop wireless networks
(2012 , Conference Paper)We propose an energy-aware MAC protocol, referred to as EM-MAC, for multi-hop wireless networks with multi-channel access capabilities. EM-MAC relies on iMAC's efficient channel selection mechanism to resolve the medium ... -
Enhancing spectral-energy efficiency for LTE-Advanced heterogeneous networks: A users social pattern perspective
( Institute of Electrical and Electronics Engineers Inc. , 2014 , Article Review)The development of LTE-Advanced and beyond cellular networks is expected to offer considerably higher data rates than the existing 3G networks. Among the many potential technologies in LTE-Advanced systems, users' ... -
Estimating the number of sources: An efficient maximization approach
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)Estimating the number of sources received by an antenna array have been well known and investigated since the starting of array signal processing. Accurate estimation of such parameter is critical in many applications that ... -
Green operator cooperation for radio frequency transmission minimization
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)The increasing demand for reliable mobile services with faster communications speed requires high capital investment in the radio access networks. This leads to enormous energy consumption, high operational costs (OPEX), ... -
Hybrid radio resource allocation and interference coordination for type 1a-relayed long term evolution uplink
( Institution of Engineering and Technology , 2014 , Article)Relay technology has been included in long term evolution (LTE) cellular system through 3GPP Release 10. Relay-based LTE cellular system is one of the most promising technologies to enhance the throughput and coverage of ...