Transmitting high-quality, real-time interactive video over lossy networks is challenging because network data loss can severely degrade video quality. A promising feedback technique for low-latency video repair is Reference Picture Selection (RPS), whereby the encoder selects one of several previous frames as a reference frame for predictive encoding of subsequent frames. RPS operates in two d...

The Wireless Sensor Network (WSN) has evolved into a new IoT scheme, and its adoption no restrictions at present. Sadly, security an impact on the network of wireless sensors, Denial-of-Service (DOS) categories attacks are concerns. This study therefore focuses distributed denial service (DDOS), especially DDoS-PSH-ACK (ACK & PUSH ACK Flood) in WSN. An experimental analysis was developed to pre...

Tree-based ACK mechanism for reliable multicast service is well-known to provide high scalability as well as reliability. However, it should be followed an efficient ACK-Tree construction mechanism. The ERS(Expanding Ring Search) mechanism which is a receiver-driven bottom-up approach has been mainly used to construct an ACK-tree. However, it is known to cause heavy message overhead and to have...

Wireless data services are fundamental in ubiquitous networks. In wireless data networks, the TCP congestion mechanism can mistake a wireless channel error or blackout for congestion on the route. Several wireless TCP protocols have been proposed considering TCP performance degradation in wireless systems. However, these protocols are too complex to deploy in wireless systems. In this paper, we...

In this paper, we suggest enhanced broadcasting method, named 'BSART(Broadcasting with Selected Acknowledgement and Repeat Transmissions)' which reduces broadcast storm and ACK implosion on the mobile ad-hoc network with switched beam antenna elements that can enable bidirectional communication. To reduce broadcast storm, we uses DPDP(Directional Partial Dominant Pruning) method, too. To contro...

The Internet engineering task force (IETF) has standardized a new framework for IPv6 support over low-power wide-area networks (LPWANs), called static context header compression and fragmentation (SCHC). SCHC includes acknowledgment (ACK)-based mechanisms reliable fragmented packet transmission. For the latter, defines receiver-feedback technique (RFT), compressed bitmap (CB), by which receiver...

This document describes a possible congestion control mechanism for acknowledgement traffic (ACKs) in TCP. The document specifies an end-to-end acknowledgement congestion control mechanism for TCP that uses participation from both TCP hosts, the TCP data sender and the TCP data receiver. The TCP data sender detects lost or ECN-marked ACK packets, and tells the TCP data receiver the ACK Ratio R ...

There are considerable serious propagation delay rate and high error rate in case of data transmission in the poor and causal environment, such as underwater. Like this environment usually has heavy fluctuation of error rate and limited wireless communication state. Therefore, mechanism using in such environment has to be efficient and simple. This paper suggests a novel block ack mechanism, ca...

The techniques of frame aggregation and block acknowledgement (ACK) are utilized in the IEEE 802.11n standard for achieving high throughput performance from the medium access control perspective. Conventional greedy scheme for block ACK adopts the transmitterdefined starting sequence number (SSN) to construct the ACK window for recognizing the correctness of data packets. However, there exists ...

Advanced Evolved Universal Terrestrial Radio Access (Advanced E-UTRA), called LTE-Advanced, has been standardized in the 3rd Generation Partnership Project (3GPP) as a candidate for IMTAdvanced. LTE-Advanced supports spatial orthogonal-resource transmit diversity (SORTD) [1], [2] for ACK/NACK signals and scheduling requests (SRs), which are used to control downlink hybrid automatic repeat reque...