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We instigate the questions of: (i) whether increasing the number of available channels is always useful for improving the Quality of Service (QoS) (i.e., throughput or packet delivering delay) of Wireless Mesh Networks (WMNs), (ii) whether using more complex algorithms for managing Partially Overlapping Channels (POCs) is beneficial in terms of improving the QoS of WMNs? For the purpose of the instigation,...
This paper provides a new scheme for the VLSI implementation of a parallel Discrete Cosine Transform (DCT) using stochastic logic. Stochastic computation is a number representation, which can carry out complex computations with very low hardware cost. However, the delay of data output is proportional to the length of serial sequence. We provide a new area-saving parallel DCT design to improve the...
Hash computation is an important component of many high speed network devices that employ them for longest prefix matching. With growing line rates it is essential that this critic l component be implemented in hardware to reduce both power and latency. In this paper, we focus on the issue of latency. Null Convention Logic (NCL) is a popular asynchronous design technique that is known to offer robustness...
The development of Network Function Virtualization (NFV) and Software Defined Networks (SDN) standards is an opportunity for Mobile Network Operators (MNOs) to deploy Content Delivery Network (CDN) functionalities into the mobile network edge, such as Base Stations (BSs). In this paper, we investigated the content placement problem for the BS-based wireless CDN system. We call the storage resources...
With the worldwide evolution of 4G generation and revolution in the information and communications technology(ICT) field to meet the exponential increase of mobile data traffic in the 2020 era, the hybrid satellite and terrestrial network based on the soft defined features is proposed from a perspective of 5G. In this paper, an end-to-end architecture of hybrid satellite and terrestrial network under...
When communicating at high-speed environment such as high-speed rail, the signals may encounter fast fading due to the terrain changes. In such communication environment, signal prediction can help improve the system throughput and reduce packet loss. In this paper, we propose a prediction mechanism called Window Weight Moving Average (WWMA) to predict the signal strength. We also analyze the real...
Smart system applications are spreading worldwide, specifically health monitoring has gained outstanding interest and importance over the last years. Data captured from sensors arrive continuously and only efficient large scale data handling using data stream processing can cope with the transport requirements. Stream processing means that without intermediate storage the data should be processed...
Internet of Things (IoT) is considered to be the next revolution in the field of wireless communications. This concept involves mapping of physical world to virtual (cyber) world. It is achieved by interconnecting devices having sensing capabilities using unique addressing scheme and passing their collective information to the IoT cloud. However at present, these devices belonging to different technologies...
High smartphone penetration and Average Revenue Per User (ARPU) growth imply a quick and good broadband services delivery. In this context, Mobile Networks Operators (MNOs) have to satisfy current subscribers and gain new ones. Small Cells (SCs) are a promising alternative to MNOs to reach emerging markets and meet the rising mobile broadband demand. However, most of those competitive markets have...
A heterogeneous multicore processor is proposed to accelerate advanced driver assistance system (ADAS). To enable a real-time operation of ADAS functions with 720p stereo video stream, multiple granualrity parallel SIMD/MIMD architecture is proposed with precise visual attention and high throughput network-on-chip to reduce computation cost and network congestion, respectively. In addition, it employs...
Aeronautical Mobile Airport Communications System (AeroMACS) is a WiMAX-based cellular technology that enables the access of Subscriber Stations (SS) to support ATC, AOC and airport applications on the airport surface. SS can be fixed stations, aircraft or vehicle embedded radios, or handheld devices. The AeroMACS access service network is provided by a number of Base Stations (BS) that operate in...
The rise of the Internet of Things and the growth of the IP cameras market are making Wireless Video Sensor Networks (WVSNs) popular. In turn, Wi-Fi is becoming the enabling technology for WVSNs due to its flexibility, high bitrates provided and low cost; however, these networks suffer from three major problems: bad performance, throughput unfairness, and energy inefficiency. In order to address the...
In last decade, number of internet users are increasing so as Wi-Fi network usage is also increasing. Users are using Wi-Fi network for the internet facility. Wi-Fi network is a collection of Mobile Users [MUs] and Access Points [APs]. Because of unavailability of smart association techniques, sometimes mobile users are associated to single access point beyond the capacity of the access point, at...
The interconnection of distributed sensor nodes that is used to measure the sensor data in remote locations is called as Wireless Sensor Network (WSN). Each of the sensors is interfaced with a microcontroller to form wireless sensor node. Different types of devices like PDA'S, laptops, television etc., are used in consumer electronics that use different software and protocols. There is no common communication...
Simulation is the crux of every network research as it imitates the real word scenarios. Several network simulators are utilized to analyze the performance of the network. Among them NS3 is currently trending network simulator and it is an open source library package developed using C++ and Python languages. Various new modules are being incorporated in NS3 as part of the development. The modules...
Arbitration among various clients, requesting multiple resources simultaneously in high throughput system, needs multiple requests selection in single cycle. A new technique for implementation of arbiter, which selects up to two active request is proposed in this paper. 2 selector circuits are designed by modification of existing parallel prefix tree structures for architecture. Design maintains fairness...
Energy and temperature are the main constraints for modern high-performance multi-core systems. To save power or increase performance, Dynamic Voltage and Frequency Scaling (DVFS) is widely applied in industry. As CMOS technology continues scaling, FinFET has recently become the common choice for multi-core systems. In contrast with planar CMOS, FinFET is observed to have lower delay under higher...
This paper presents GF(2m) multiplier for trinomials. Multiplier is implemented using digit serial/parallel architecture. Architecture is constructed using modified LSD-first multiplication algorithm. Bit throughput is a critical factor of GF(2m) multiplication for different applications.Applications such as digital signal processors, computer systems, FIR filter implementation. This architecture...
Schedule based MAC protocols have been proposed to meet the energy constraint of Wireless Sensor Neworks (WSNs). Although existing schedule based MAC protocols such as LMAC and MC-LMAC are energy efficient, they introduce significant end-to-end delivery latency as well as low network throughput. In this paper, a low latency multichannel LMAC protocol, LL-MCLMAC protocol, is presented for WSNs which...
The natural pipelining behavior of Null Convention Logic (NCL) can often result in high speed data paths with fewer gate delays. However, the spanning completion detection and shared completeness path of the NCL handshaking signal may need very large completion detection gates that exhibit excessive fan-in, long propagation delays and high capacitance. Fine grained Two-Dimensional (2D) Pipelining...
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