分类：无线标准    下载：5    浏览：390    时间：2021-01-07

IEEE Std 802.17c-2010 (Amendment to IEEE Std 802.17-2004 as amended by IEEE Std 802.17b-2007) IEEE Standard for Information technology— Telecommunications and information exchange between systems— Local and metropolitan area networks— Specific requirements Part 17: Resilient packet ring (RPR) access method and physical layer specifications Amendment 2: Protected inter-ring connection Approved 25 March 2010 Abstract: A service provider’s use of the architecture and protocols of IEEE 802.17 to support ring interconnection through dual station homing, providing 50 ms protection, loop prevention, and load balancing of traffic between rings, is added by this amendment. Keywords: bridging, fairness, layer management, medium access control, metropolitan area network (MAN), physical layer, protection switching, resilient packet ring (RPR), ring topology, spatial reuse, topology detection

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IEEE Std 802.20a-2010 (Amendment to IEEE Std 802.20-2008) IEEE Standard for Local and metropolitan area networks— Part 20: Air Interface for Mobile Broadband Wireless Access Systems Supporting Vehicular Mobility— Physical and Media Access Control Layer Specification Amendment 1: Management Information Base Enhancements and Corrigenda Items Approved 8 December 2010 Abstract: This amendment enhances IEEE 802.20 Management Information Base (MIB) clauses to include additional information and MIB documentation (i.e., a discussion of security impacts, and cross references to the text for appropriate parameters within the MIB, itself) to conform with the applicable parts of the IETF’s 2008 guidelines for MIBs. The amendment also corrects any errors, inconsistencies, and ambiguities associated with the MIB clause of IEEE Std 802.20-2008. Keywords: 802.20, Management Information Base, MIB

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正式版本请搜索本站 IEEE P802.11v/D0.09, March 2007 IEEE P802.11v/D0.09 Draft Amemdment to Standard for Information Technology - Telecommunications and Information ExchangeBetween Systems - LAN/MAN Specific Requirements - Part 11: Wireless Medium Access Control(MAC) and physical layer (PHY) specifications Amendment v: Wireless Network Management Abstract: This amendment provides WirelessNetwork Management enhancements to the 802.11 MAC, and PHY, extending radiomeasurements to effect a complete and coherent upper layer interface formanaging 802.11 devices in wireless networks. Keywords: Wireless Network Management, RadioResource Management

分类：无线标准    下载：5    浏览：776    时间：2021-01-07

Lennart Yseboodt, Philips Lighting David Abramson, Texas Instruments April 2018 Contents 1 Introduction 7 2 System overview 8 2.1 Power Interface 2.2 Class 2.3 Device Types 2.4 Cable / link section requirements 2.5 2-pair and 4-pair powering 3 Detection 14 4 Connection check and PD signature configuration 16 4.1 Single-signature PD configuration. 4.2 Dual-signature PD configuration 4.3 Requirements to provide 4-pair power 5 Classification 20 5.1 Classification terminology 5.2 Class probing 5.3 Mutual identification 5.4 Data Link Layer Classification. 6 Autoclass 28 6.1 PSE Autoclass requirements . 6.2 PD Autoclass requirements 7 Inrush 31 7.1 PSE inrush 7.2 PD inrush 8 Operating power 34 8.1 PD power limits 8.2 PSE power 8.3 Powering configurations. 9 Current unbalance 41 9.1 PSE current unbalance 9.2 PD current unbalance. 10 Maintain Power Signature (MPS) 43 10.1 PSE MPS measurements. 10.2 PD MPS design consideration 11 LLDP Power over Ethernet TLV 49 11.1 Power via MDI Measurements TLV

分类：无线标准    下载：5    浏览：316    时间：2020-12-10

IEEE Std 802.1AC™-2012 IEEE Standard for Local and metropolitan area networks— Media Access Control (MAC) Service Definition 14 September 2012

分类：无线标准    下载：5    浏览：438    时间：2020-12-27

IEEE Std 802.3-2005/Cor 1-2006 (Corrigendum to IEEE Std 802.3-2005) IEEE Standard for Information technology— Telecommunications and information exchange between systems— Local and metropolitan area networks Specific requirements Part 3: Carrier Sense Multiple Access With Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications Corrigendum 1 Approved 8 June 2006 Abstract: This corrigendum clarifies and corrects isolation text including harmonization for both powered and unpowered Medium Dependent Interfaces. Keywords: DTE Power via the MDI, POE, Power over Ethernet, isolation

分类：无线标准    下载：5    浏览：1490    时间：2017-08-07

《信息技术 系统间远程通信和信息交换 局域网和城域网 特定要求 第11部分：无线局域网媒体访问控制和物理层规范》，简称为《无线局域网媒体访问控制和物理层规范》（GB15629.11-2003）

分类：无线标准    下载：5    浏览：394    时间：2021-01-07

IEEE Std 802.3bc-2009 (Amendment to IEEE Std 802.3-2008) IEEE Standard for Information technology— Telecommunications and information exchange between systems— Local and metropolitan area networks— Specific requirements Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications Amendment 2: Ethernet Organizationally Specific Type, Length, Value (TLVs) Approved 11 September 2009 Abstract: This amendment to IEEE Std 802.3-2008 transfers the IEEE 802.3 Organizationally Specific TLVs, specified in IEEE Std 802.1AB™-2009, Station and Media Access Control Connectivity Discovery, to IEEE Std 802.3. Keywords: Ethernet, LLDP, type, length, value (TLVs)

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IEEE Standard for Conformance to IEEE 802.16TM Part 1: Protocol Implementation Conformance Statement (PICS) Proforma for 10–66 GHz WirelessMAN-SCTM Air Interface Abstract: This standard represents the Protocol Implementation Conformance Statement Proforma, per ISO/IEC 9646-7 (1995) and ITU-T X.296, for conformance specification of base stations and subscriber stations based upon the WirelessMAN-SC air interface specified in IEEE 802.16. 共4个文件打包下载： 802.16_Conformance01-2003.pdf 802.16_Conformance02-2003.pdf 802.16_Conformance03-2004.pdf 802.16_Conformance04-2006.pdf

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IEEE Std 802.21-2008 IEEE Standard for Local and metropolitan area networks— Media Independent Handover Services Approved 11 November 2008 Abstract: This standard specifies IEEE 802® media access-independent mechanisms that optimize handovers between heterogeneous IEEE 802 systems and between IEEE 802 systems and cellular systems. Keywords: management, media independent handover, mobile node, mobility, seamless, point of attachment, point of service

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George Athanasiou,1 Thanasis Korakis,2 and Leandros Tassiulas1 1Department of Computer and Communications Engineering, University of Thessaly, 37 Glavani Street 382 21 Volos, Greece 2Department of Electrical and Computer Engineering, Polytechnic University, 5 Metrotech Center, Brooklyn, NY 11201, USA Correspondence should be addressed to George Athanasiou, gathanas@uth.gr Received 17 November 2008; Revised 16 February 2009; Accepted 9 July 2009 Recommended byWei Li In IEEE 802.11-based wireless networks, the stations (STAs) are associated with the available access points (APs) and communicate through them. In traditional handoff schemes, the STAs get information about the active APs in their neighborhood by scanning the available channels and listening to transmitted beacons. This paper proposes an 802.11k compliant framework for cooperative handoff where the STAs are informed about the active APs by exchanging information with neighboring STAs. Besides, the APs share useful information that can be used by the STAs in a handoff process. In this way, we minimize the delay of the scanning procedure. We evaluate the performance of our mechanisms through OPNET simulations. We demonstrate that our scheme reduces the scanning delay up to 92%. Consequently, our system is more capable in meeting the needs of QoS-sensitive applications. Copyright © 2009 George Athanasiou et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Abstract—IEEE 802.11k is an extension of the IEEE 802.11 specification for radio resource measurements. In an IEEE 802.11k-enabled wireless LAN, an access point or other network element may request from a client or another access point to monitor and report the load of a channel. We call the latter a channel monitoring station. In this paper we propose a mechanism for a channel monitoring station to efficiently derive accurate values of channel load.We especially focus on optimizing the duration of channel monitoring and thus minimize the impact on applications. Note that such mechanisms are critical for the success of new sharing regimes such as Cognitive Radio and Open Spectrum Access.