a r t i c l e i n f o a b s t r a c t In this paper, we show that the Fast broadcasting scheme (L.-S. Juhn and L.-M. Tseng, 1998 [4]), abbreviated the FBR scheme, is also suitable for heterogeneous clients of different communication capabilities although it is originally designed for homogeneous clients of the same bandwidth. Given α channels of total bandwidth α · b Mbps to deliver a video of ...

This work reports an efficient and compact FPGA processor for the SHA-256 algorithm. The novel processor architecture is based on a customdatapath that exploits the reusing ofmodules, having as main component a 4-input Arithmetic-Logic Unit not previously reported. This ALU is designed as a result of studying the type of operations in the SHA algorithm, their execution sequence and the associat...

Status of this Memo This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Abstract MD5 is an authentication algorithm, which has been proposed as the default authentication option in IPv6. When enabled, the MD5 algorithm operates over the entire data packet, including header. This RFC addre...

In IEEE802.11,it is the general case that the further away the stations from the access point (AP), the slower the data rate is to transmit to the AP. With the existing IEEE 802.11 MAC, in the long run all stations end up with the same amount of throughput, no matter if they transmit slow or fast. When one host captures the channel for a long time because its bit rate is low, it penalizes other...

This paper proposes broadband packet wireless access employing Variable Spreading Factor-Orthogonal Frequency and Code Division Multiplexing (VSF-OFCDM) with two-dimensional spreading that prioritizes time domain spreading in the forward link and Multi-carrier/DS-CDMA (MC/DSCDMA) in the reverse link for the system beyond IMT-2000. Based on the wireless access scheme, we propose major radio air ...

This document reports on performance of a splitterless "V/ADSL" system that uses DMT with 4.3125 kHz wide tones over the band from DC to 5 MHz. Asymmetric 26/3.2 Mbps V/ADSL service reaches over 3000 feet, while symmetric service at 6.5 Mbps and 3.2 Mbps reaches are 3000 to 6000 feet for the conventional (or digitally duplexed) DMT. These ranges are maintained even in the presence of bridged-ta...

Change factors common across psychosocial interventions, including those relating to group treatments, are often not addressed within research into mindfulness-based programmes (MBPs). Here, we present how consideration of these can be beneficial for both mindfulness teachers and researchers. This article is a selective review relevant small treatment practitioner literature. encompasses emerge...

An efficient error reconciliation scheme is important for post-processing of quantum key distribution (QKD). This paper concerns the improvement performance. Recently, a multi-matrix low-density parity-check code-based algorithm which can provide remarkable perspectives high-efficiency information was proposed by Gao (Opt Express 27:14545–14566, 2019). The implemented and optimized on graphics ...

Status of this Memo This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Abstract MD5 is an authentication algorithm, which has been proposed as the default authentication option in IPv6. When enabled, the MD5 algorithm operates over the entire data packet, including header. This RFC addre...