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In this article deals with estimating and analysis capacity of the closed video channel in the case of applying the method for processing video data based on standardized MPEG technology, the method for closing the video based on the series circuit (compression followed by encryption), the method to hide all the video after the DCT blocks of the base of the video frame, the method based on the selection...
Slow rate, in-band signalling embedded into audio content of digital or analog radio broadcast network is common but demanding design challenge. In this paper a solution based on complementary pair of notch-peak filters for audio in-band signalling system is proposed. The concept is illustrated with a series of examples, verifying the basics of the idea and indicating possible traps and challenges...
Fast-acting, yet cost-effective, communications is critical for smarter grid monitoring, protection, and control. This paper demonstrates a new approach for the real-time compression of Sampled Value (SV) data based on the IEC 61869-9 recommendations. This approach applies simple compression rules, yet yields excellent compression performance — typically compressing data to less than half of the original...
Admission control is a fundamental mechanism used for Quality of Service (QoS) provisioning by restricting the access to the network resources. In this paper, we consider the application of superposition coding to increase the system capacity through multiuser diversity exploitation. We propose a joint great fairness admission control and superposition coding scheme to provide a good tradeoff between...
This electronic document is a “live” template and already defines the components of your paper [title, text, heads, etc.] in its style sheet. Video streaming is a technique for distributing media content, in which it is not necessary for the streams of the requested file to arrive in full in order to begin playing the video. Traditionally, streaming has been supported by RTP and RTSP protocols, requiring...
In this paper, we propose an efficient motion estimation hardware architecture for High Efficiency Video Coding (HEVC) using a Modified Reference Data Access Skip (MRDAS) for reducing the minimum memory bandwidth. The memory bandwidth is responsible for the throughput limitations in motion estimation, especially when dealing with high quality video of a large frame size and search range. This architecture...
We consider the problem of sending a bivariate Gaussian source over a slow-fading multiple-access channel (MAC) with no channel state information at the transmitters. A joint source-channel coding (JSCC) scheme is constructed using hybrid digital- analog (HDA) coding techniques to minimize the average distortion over the uncertain MAC. Numerical results show that, under Rayleigh fading, the proposed...
Modern SOCs may be composed of hundreds of individual physical modules, referred to as tiles. The total number of scan channels servicing these tiles often greatly exceeds the number of SOC device pins available to connect those channels to test equipment. Traditional reliance on a small number of pin-to-channel test mode configurations, predetermined in hardware, results in inefficient scan data...
Document is unavailable: This DOI was registered to an article that was not presented by the author(s) at this conference. As per section 8.2.1.B.13 of IEEE's "Publication Services and Products Board Operations Manual," IEEE has chosen to exclude this article from distribution. We regret any inconvenience.
A cloud-based encoding pipeline which generates streams for video-on-demand distribution typically processes a wide diversity of content that exhibit varying signal characteristics. To produce the best quality video streams, the system needs to adapt the encoding to each piece of content, in an automated and scalable way. In this paper, we describe two algorithm optimizations for a distributed cloud-based...
Multiple description coding has been shown to provide flexible and distortion-rate optimal video streaming transmission over lossy links. In this paper, we provide an adaptive MD-FEC algorithm for point-to-multipoint video streaming that approximately minimizes the average distortion of the multicast video. Our new algorithm accomplishes this by adapting both the packet lengths and their number to...
A multimode 850-nm VCSEL with its relative-intensive-noise suppressed to −145 dBc/Hz is employed for directly encoded 56-Gbps 16-QAM OFDM and 22-Gbps PAM-4 transmissions with corresponding BERs of 3.2×10−3 and 1.9×10−10, respectively.
Although bi-orthogonal coding requires half the bandwidth of the other Hadamard-type waveform codes, such coding schemes are attractive only when large bandwidth is available, the finite projective plane (FPP) based waveform coding schemes are proposed and evaluated through three performance metrics, which are with similar error performance and cross correlation with Hadamard-type waveform codes....
We propose a new class of transceivers for secure communication and interference mitigation, operating over large bandwidths on the order of 10GHz. Specifically, a novel coding approach that combines frequency and code multiplexing is proposed. Equally important is power and hardware reduction by implementing a low power on-site coding with beamforming. The latter reduces power requirements for the...
Road Side Units (RSUs) installed alongside the road in Vehicular Ad Hoc Networks (VANETs) act as buffer points and alleviate the frequent vehicle-to-vehicle connectivity problem. In VANETs, submitting multi-item query is a common phenomenon, for instance, a query with required traffic information of multiple routes. Unlike the single item query, a multi-item query only be satisfied successfully if...
Erasure coding, Reed-Solomon coding in particular, is a key technique to deal with failures in scale-out storage systems. However, due to the algorithmic complexity, the performance overhead of erasure coding can become a significant bottleneck in storage systems attempting to meet service level agreements (SLAs). Previous work has mainly leveraged SIMD (single-instruction multiple-data) instruction...
When the video bit-rate is greater than the available network bandwidth, the video stream suffers from packet loss due to packets that need to be dropped. A streaming server (or a network proxy) can implement a proactive packet filtering strategy, which is to voluntarily block (not forward) some packets in the event of such bandwidth mismatch. The challenge is to decide which packets to block so that...
In the underwater communication, satellite communication, secure communication and other channels, the channel bandwidth is narrow and the channel condition is relatively poor. Therefore, higher quality and lower rate speech coding is needed. In order to improve the synthetic speech quality and save channel bandwidth, voice activity detection (VAD) technique is introduced to Mixed Excitation Linear...
Large-scale storage systems often face node failures that lead to data loss. Cooperative regeneration has been extensively studied to minimize the repair traffic of simultaneously reconstructing the lost data of multiple failed nodes. However, existing cooperative regeneration schemes assume that nodes are homogeneous. They do not consider how to minimize the general regenerating cost when taking...
Radio frequency identification (RFID) chipless tag is presented that achieves a high code density per frequency by encoding place values for time specific applications. In comparison with previous work that encodes the complete identification number, the proposed encoding scheme shows an increase in code density per frequency by almost 200%. The chipless tag is excited using linearly polarized plane...
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