نتایج جستجو برای: feedback receivers
تعداد نتایج: 159475 فیلتر نتایج به سال:
We present a novel feedback protocol for wireless broadcast networks that utilize linear network coding. We consider transmission of packets from one source to many receivers over a single-hop broadcast erasure channel. Our method utilizes a predictive model to request feedback only when the probability that all receivers have completed decoding is significant. In addition, our proposed NACK-ba...
BMTP offers rate controlled multicast with reliability, high throughput, and support for large numbers of receivers. A multicast sender needs feedback from receivers to recover from errors and to choose an appropriate send rate, but must avoid being overwhelmed as the number of receivers grows. BMTP does this by keeping the rate at which each receiver sends feedback inversely proportional to a ...
In this letter, we present a new ATM scalable multicast algorithm called SRAM that can provide reliable data transfer services. This algorithm employs the RM cell consolidation mechanism for ABR point-to-multipoint connections which resolves the feedback implosion problem without increasing the number of connections according to the number of receivers. We compare the proposed scheme with other...
This paper addresses the problem of rate and congestion control for video transmission in large multicast groups. A classification of the receivers is performed according to a predefined similarity measure (e.g. packet loss rate observed or TCP-friendly bandwidth share). The RTCP receiver reports are then filtered accordingly. The classification of receivers done by feedback aggregation agents ...
A multiple transmit antenna, single receive antenna (per receiver) downlink channel with limited channel feedback is considered. Given a constraint on the total system-wide channel feedback, the following question is considered: is it preferable to get low-rate feedback from a large number of receivers or to receive high-rate/high-quality feedback from a smaller number of (randomly selected) re...
In this paper, a comprehensive study of packetbased instantly decodable network coding (IDNC) for singlehop wireless broadcast is presented. The optimal IDNC solution in terms of throughput is proposed and its packet decoding delay performance is investigated. Lower and upper bounds on the achievable throughput and decoding delay performance of IDNC are derived and assessed through extensive si...
InMulti User Multiple Input Single Output (MU-MISO) systems one centralized transmitter with multiple antennas serves several decentralized single-antenna receivers. Precoding is an attractive way to remove multiuser interferences because it reduces cost and power consumption in the user equipment. When implementing precoding, however, the base station should know the Channel State Information ...
For a reliable ow controlled multicast transport protocol to scale it must avoid the feedback implosion problem particularly if the pro tocol targets arbitrarily large multicast groups communicating over lossy networks Most existing feedback control mechanisms based on probabilistic sup pression address the feedback implosion problem by suppressing feedback using timers based on round trip time...
For a reliable, ow-controlled multicast transport protocol to scale, it must avoid the feedback implosion problem 5], particularly if the protocol targets arbitrarily large multicast groups communicating over lossy networks. Most existing feedback control mechanisms based on probabilistic suppression address the feedback implosion problem by suppressing feedback using timers based on round-trip...
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