Path Diversity with Forward Error Correction (PDF) System for Packet Switched Networks
Thinh Nguyen and Avideh Zakhor
Department of Electrical Engineering and Computer Sciences
University of California, Berkeley, CA 94720
{thinhq, avz}@eecs.berkeley.edu
Abstract—Packet loss and end-to-end delay limit delay sensitive
applications over the best effort packet switched networks such as
the Internet. In our previous work, we have shown that substantial
reduction in packet loss can be achieved by sending packets at
appropriate sending rates to a receiver from multiple senders,
using disjoint paths, and by protecting packets with forward error
correction. In this paper, we propose a Path Diversity with Forward
error correction (PDF) system for delay sensitive applications over
the Internet in which, disjoint paths from a sender to a receiver are
created using a collection of relay nodes. We propose a scalable,
heuristic scheme for selecting a redundant path between a sender
and a receiver, and show that substantial reduction in packet loss
can be achieved by dividing packets between the default path
and the redundant path. NS simulations are used to verify the
effectiveness of PDF system.
موضوع فارسی :بهینه سازی چند هدفه برای کنترل پوشش در حسگر بی سیم
شبکه با شعاع سنجش قابل تنظیم
موضوع انگلیسی :Multi-objective optimization for coverage control in wireless sensor
network with adjustable sensing radiusI
تعداد صفحه :9
فرمت فایل :PDF
سال انتشار :2009
زبان مقاله : انگلیسی
در این مقاله، مشکل حفظ پوشش سنجش با نگه داشتن تعداد کمی
از گره های حسگر فعال و مقدار کمی از مصرف انرژی در یک حسگر بی سیم
شبکه بررسی شده است. همانطور که به مدل سنجش یکنواخت قبلا مخالف، ما در نظر
تعداد زیادی از سنسور با شعاع سنجش قابل تنظیم است که به طور تصادفی به مستقر
نظارت بر یک منطقه هدف. طرح رمان کنترل پوشش بر اساس نخبه گرا غیر تحت سلطه
مرتب سازی الگوریتم ژنتیک (NSGA-II) در یک شبکه حسگر ناهمگن ارائه شده است.
با ابداع یک معماری مبتنی بر خوشه، الگوریتم را در راه توزیع استفاده می شود.
علاوه بر این، برنامه نویسی باینری بهبود خطاب به هر دو نماینده شعاع سنجش
تنظیم و انتخاب سنسور. نتایج عددی و شبیه سازی اعتبار که
روش برای پیدا کردن نقطه تعادل مطلوب در میان حداکثر میزان پوشش، حداقل
مصرف انرژی، و همچنین به عنوان حداقل تعداد گره فعال سریع و موثر است.
International Journal of Signal Processing Systems Vol. 3, No. 1, June 2015
R. C. Choukimath and V. V. Ayyannavar
Abstract—Message authentication is one of the most effective ways to thwart unauthorized and corrupted messages from being forwarded in wireless sensor networks (WSNs). For this reason, many message authentication schemes have been developed, based on either symmetric-key cryptosystems or public-key cryptosystems. Most of them, however, have the limitations of high computational and communication overhead in addition to lack of scalability and resilience to node compromise attacks. To address these issues, a polynomial-based scheme was recently introduced. However, this scheme and its extensions all have the weakness of a built-in threshold determined by the degree of the polynomial, when the number of messages transmitted is larger than this threshold, the adversary can fully recover the polynomial. Thus the aim of the project is to implement a scalable authentication scheme based on elliptic curve cryptography (ECC).While enabling intermediate nodes authentication. The proposed scheme allows any node to transmit an unlimited number of messages without suffering the threshold problem. In addition, the scheme can also provide message source privacy.
Index Terms—WSN, polynomial scheme, ECC
J Inf Process Syst, Vol.8, No.4, December 2012
R.Sumathi* and M.G.Srinivas**
Abstract—With the increasing demand for real time applications in the Wireless Senor
Network (WSN), real time critical events anticipate an efficient quality-of-service (QoS)
based routing for data delivery from the network infrastructure. Designing such QoS
based routing protocol to meet the reliability and delay guarantee of critical events while
preserving the energy efficiency is a challenging task. Considerable research has been
focused on developing robust energy efficient QoS based routing protocols. In this paper,
we present the state of the research by summarizing the work on QoS based routing
protocols that has already been published and by highlighting the QoS issues that are
being addressed. The performance comparison of QoS based routing protocols such as
SAR, MMSPEED, MCMP, MCBR, and EQSR has also been analyzed using ns-2 for
various parameters.
Keywords—Wireless Sensor Networks, Quality of Service, Reliability, Energy Efficiency,
End-To-End Delay, Critical Data