INTERNET-DRAFT Manjunath Iyer Expires: December 18, 2006 Celstream June 18, 2006 Integrated algorithm for QoS in MANET draft-manjunath-manet-integrated-qos-00.txt Status of this Memo By submitting this Internet-Draft, each author represents that any applicable patent or other IPR claims of which he or she is aware have been or will be disclosed, and any of which he or she becomes aware will be disclosed, in accordance with Section 6 of BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/1id-abstracts.html The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on December 18, 2006. Copyright Notice Copyright (C) The Internet Society (2006). Abstract Meeting the agreed service quality in a mobile ad hoc network is tough and addressed in [RFC1677]. A mechanism is provided in [RFC2501]. In this draft, usage of an integrated algorithm is described. The fading RF channels introduce the harmful self-similarity in to the traffic. To counter the same, another self-similar controlling mechanism may be inserted for the better wireless network performance and optimal resource utilization. Manjunath Expires December18, 2006 [Page 1] Internet-Draft Integrated algorithm for QoS in MANET June 2006 1. Introduction 1.1 Terminology The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119]. 1.2 Overview In a wireless ad hoc network, where the channel characteristics are not fixed, providing the information over the network status through a feedbackpath would be difficult. Hence a virtual feedback may be provided. The virtual feedback would not be from end to end. It could be confined to a small part of the wireless channel such as a base station or a switch. Providing a piece- wise feedback at one or more points along the path would impart interesting properties. The entire channel behaves as though a kind of feedback is provided from end to end. 1.3 Integration of Quality of service The methods for Meeting the service parameters in a wireless channel are provided in [RFC1677].One of the issues with the RF channels is that the characteristics of the channel vary overtime and space. An adaptive model that looks more at the traffic characteristics than the channel characteristics is more realistic to the problem of traffic shaping. Towards meeting the service quality, a scheduling algorithm is assigned to meet each of the service qualities putting a stringent time bound constraint for switching over the algorithms dynamically as suggested in the [RFC2501]. A single controller that removes the redundancies among the set of algorithms MAY be used to cater for the different algorithms. Manjunath Expires December18, 2006 [Page 2] Internet-Draft Integrated algorithm for QoS in MANET June 2006 2. Impact of piecewise feedback The piece wise feedback imparts self-similarity for the traffic that passes across the controller. This self-similarity has to counter the one introduced as a result of fading over the wireless channel. Providing the self-similarity through the controller may be linked to the usage a single scheduler that learns the scheduling rules. A control element with feedback results in multiple resolution at the output. Each of these resolutions map on to a QoS or scheduling algorithm. The converse is also true. A set of rules may be learnt by a controller with feedback, that imparts self-similarity in the network. The self-similarity arises as result of the long-range dependency coming from the usage of an array of the previous outputs from the feedback path in the decision making process for QoS or scheduling. The multiple scheduling algorithms are brought in by providing different weightages for the different feedback signals in the decision making process. Intuitively, any decision process can be captured by an arbitrary function that is expressible in terms of differentials of different orders. The scheduling algorithms catering for different QoS are similar in nature but differ in scale. They map on to the different outputs of the non-linear controller. Manjunath Expires December18, 2006 [Page 3] Internet-Draft Integrated algorithm for QoS in MANET June 2006 3. Security Considerations The wirelwss ad hoc networks are prone to intrusion. Due consideration SHALL be given for the security by defining the securiy as a QoS parameter. 4. IANA Considerations This document has no actions for IANA. Manjunath Expires December18, 2006 [Page 4] Internet-Draft Integrated algorithm for QoS in MANET June 2006 5. References 5.1 Normative References [RFC2119] Bradner, S. "Key Words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. 5.2 Informative References [RFC1677] Adamson, B., "Tactical Radio Frequency Communication Requirements for IPng", RFC 1677, August 1994. [RFC2501] J. Macker and S. Corson,"Routing protocol performance issues and evaluationconsiderations", January 1999 Manjunath Expires December18, 2006 [Page 5] Internet-Draft Integrated algorithm for QoS in MANET June 2006 6. Author's Address Manjunath.R Celstream. 9,Prestige bluechip Opp.Christ college Bangalore-560029 INDIA Phone: 80-41191919 E-mail: manju_r_99@yahoo.com Manjunath Expires December18, 2006 [Page 6] Internet-Draft Integrated algorithm for QoS in MANET June 2006 7. Acknowledgements The author acknowledges the creators of the RFCs referred in this draft for the valuable information and the extensions based on which this draft has been created The following individuals directly contributed for encouragement, identifying Issues, suggesting resolutions to the issues found in this document: Srinivas Rao, Rangaraj. This document benefited from all these contributions. The author acknowledges the encouragement and services rendered by his family members and colleagues during the preparation of the document. Manjunath Expires December18, 2006 [Page 7] Internet-Draft Integrated algorithm for QoS in MANET June 2006 8. Full Copyright Statement Copyright (C) The Internet Society (2006). This document is subject to the rights, licenses and restrictions contained in BCP 78, and except as set forth therein, the authors retain all their rights. This document and the information contained herein are provided on an "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Manjunath Expires December18, 2006 [Page 8] Internet-Draft Integrated algorithm for QoS in MANET June 2006 9. 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The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights that may cover technology that may be required to implement this standard. Please address the information to the IETF at ietf-ipr@ietf.org. Manjunath Expires December18, 2006 [Page 9]