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Wireless communication technologies became the key integral part of modern systems, experiencing an explosive development during the last two decades and penetrating to enormous number of application areas, based especially on the concept of cellular phones. More recently, short-distance wireless communication has also been discussed as a way to connect embedded electronic systems in industrial applications,...
Although High Dynamic Range (HDR) content can provide an enhanced immersive experience for end-users, the impact of channel errors on its perception is unclear due to the lack of a standardized HDR video distribution framework. This paper presents an assessment of the robustness of the two main HDR video distribution architectures, the single-layer 10-bit scheme and the two-layer 8-bit backward-compatible...
The discrete memoryless Z-Channel (DM-ZC) with a confidential cross-message is considered. Three messages are transmitted; encoder 1 transmits one message to be decoded by decoder 1. Encoder 2 transmits two messages, the first of them is to be decoded by decoder 2; the second message is to be decoded by decoder 1 and is required to be kept secret from decoder 2. The secrecy level is measured by the...
The objective of this paper is to implement SPEEX decoding on ARM microprocessor. SPEEX [1] is based on the voice compression algorithm technology of Code Excited Linear Prediction (CELP) [2], which can effectively compress voice and retain the integrity of speech. For hardware part, we give up the high-cost, high-power consumption digital signal processor, and select the STM32 series ARM microprocessor...
In this paper, we present unified Hardware (HW)/Software (SW) framework for efficient system level simulation of complex circuits, particularly high throughput wireless communication system. The proposed framework include a unified methodology covering both of system level simulation (e.g. MATLAB or C/C++) and physical level verification (e.g FPGA). It allows performing fast HW/SW evaluation in the...
Wireless communication technologies have experienced an explosive development during the last two decades, based on the concept of cellular phones. More recently, short-distance wireless communication has also been discussed as a way to connect embedded electronic systems in industrial applications. Such systems have to work under stringent real-time constraints. For industrial in-door environments,...
Energy harvesting (EH) is a prominent method to prolong the operation time of energy-constrained wireless networks. Integrating EH into wireless communications to support simultaneous wireless information and power transfer (SWIPT) allows the spectrum to be used for both purposes without compromising the quality of service (QoS). In this paper, we propose a subcarrier allocation based SWIPT scheme...
In this paper, we study a general practical stochastic energy harvesting (EH) model where in, an EH relay is able to harvest energy from the radio frequency (RF) radiation in a super capacitor. The different aspects of this stochastic energy harvesting model (SEHM) are discussed and the performance of a point-to-point (P2P) wireless link is evaluated in the presence of such an EH model and decode-and-forward...
In this paper, we study optimal resource allocation strategies focusing on the system energy efficiency with simultaneous power transfer and information decoding operation at the access point (AP). We consider a three node wireless system that consists of the AP, energy harvesting user (EHU) and non-energy harvesting user (N-EHU), and EHU opportunistically harvests energy from N-EHU and the AP. Using...
As being a complementary technique for Machine Type Communications (MTC) in future 5th Generation (5G) wireless communications, the control mechanism and control signaling should preferably be able to operate at possibly low Signal-to-Noise Ratio (SNR) without interfering the existing cellular network. In this paper, we propose an enhanced mechanism for the control signaling, targeting to low-power...
This paper analyzes a novel multiple-input single- output (MISO) simultaneous wireless information and power transfer (SWIPT) system model in the presence of an active eavesdropper over the frequency-selective fading channel. In this model, a transmitter applies the time reversal (TR) beamforming technique to combat the fading effects whereas a legitimate user employs a power splitter to jointly receive...
Physical layer processing for 5G wireless is expected to operate at a very high-throughput with very low latency. Developing a channel coding system based on Hybrid Automatic Repeat reQuest (HARQ) for evolving requirements necessitates extensive experimentation involving undesirably long development cycles. We demonstrate the use of a High-level Synthesis (HLS) compiler in LabVIEW Communications to...
We realized an all-optical digital physical-layer network coding in Fiber-Wireless networks by employing two SOA-MZI XOR gates. Encoding and decoding operations are demonstrated for 1Gb/s data on 10GHz subcarrier and extended to 60GHz with simulations.
The compute-and-forward scheme for wireless relay networks can achieve higher transmission rates than other existing relaying schemes, such as decode-and-forward. The compute-and-forward (CF) design involves finding an integer-valued coefficient vector at each relay so that the set of coefficient vectors form a full rank matrix allowing the destination to perform decoding. The CF design problem is...
As higher and higher speeds are used in wireless appliance, error correction continues to pose a considerable design challenge. Turbo codes exhibit attainment, in terms of bit error probability, that is very close to the Shannon limit and can be efficiently achieved for high-speed use. Turbo encoders and decoders have been introduced, most of which are based on convolution encoding. Here each encoder...
We consider energy-efficient decoding for multiuser detection in a wireless channel with n potential users, each of which participates with probability p. We model this problem as that of energy-efficient decoding for support recovery in a compressed sensing setup where the decoder is required to identify the support of the compressed signal vector. We use a communication complexity measure of “bit-meters”...
A wireless network architecture is studied in which edge nodes (ENs), such as base stations, are connected to a cloud processor by dedicated fronthaul links, while also being endowed with caches, in which popular content, such as multimedia files, can be proactively stored. Cloud processing enables the centralized implementation of cooperative transmission by the ENs, albeit at the cost of an increased...
Highly dense wireless networks is one of the most important solutions for spectrum shortage expected by 2020. Motivated by a generally assumption that direct links between users in HD-MWR networks are usually ignored, this paper proposes high-dense multiway relay (HD-MWR) networks exploiting available direct links as side information (SI) to serve even higher number of users or devices required for...
Chinese next generation broadcast wireless (NGB-W) systems are aimed to provide high-speed, ubiquitous, and secure broadcast services and tri-play services to massive users. New terrestrial broadcast techniques are needed to support these services in NGB-W systems. In this paper, a new set of quasi-cyclic (QC) low density parity check (LDPC) codes with a moderate code length and a wide operation range...
In this paper, we consider simultaneous transmission of information and energy in a wireless network with channels undergoing frequency-selective fading. The receivers are capable of decoding the information as well as harvesting energy from the same received signal. The network employs orthogonal frequency division multiplexing (OFDM) for signal transmission. In this context, we address two different...
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