1 / 8

900 MHz ISM Band

900 MHz ISM Band. Authors:. Date: 2009-12-15. Abstract. IEEE 802.11 currently doesn’t standardize usage of the 900 MHz ISM band. While the band is limited, it is attractive for outdoor usage. 900 MHz ISM Band and IEEE 802.11. Current IEEE 802.11 standard does not cover the 902-928 ISM band.

akamu
Download Presentation

900 MHz ISM Band

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 900 MHz ISM Band Authors: Date: 2009-12-15 David Halasz, Aclara

  2. Abstract • IEEE 802.11 currently doesn’t standardize usage of the 900 MHz ISM band. While the band is limited, it is attractive for outdoor usage. David Halasz, Aclara

  3. 900 MHz ISM Band and IEEE 802.11 • Current IEEE 802.11 standard does not cover the 902-928 ISM band. • This band does have an advantage over 2.4 GHz, 3.65 GHz and 5 GHz because of range per transmit power. • Better free space propagation loss • Better clutter propagation loss. i.e. trees, telephone poles • Increase in battery life • A disadvantage is the limited bandwidth. • However sufficient for 5, 10 and 20 MHz OFDM • Smaller channels also allows for bandwidth sharing David Halasz, Aclara

  4. SmartGrid has a large outdoor component • Use IEEE 802.11! • Select band and channel width to meet the usage needs. David Halasz, Aclara

  5. Use existing IEEE 802.11 PHY for quick solutions • Solutions today with added down converter. • Possible future solutions similar to dual mode .11a/.11g WLAN cards. David Halasz, Aclara

  6. Standardization effort • Standardization effort should be similar to IEEE 802.11y. • IEEE 802.11y PAR approved 3/16/2006 • REVCOM Standards Board Approval 9/26/2008 • Efforts within IEEE 802.11k, .11y and current .11m will make this effort easier provided not a new PHY. David Halasz, Aclara

  7. PAR & 5 criteria • Criteria from 802 Policy and procedures • Broad Market Potential • Broad sets of applicability. • Multiple vendors and numerous users. • Balanced costs (LAN versus attached stations). • Compatibility • Distinct Identity • Substantially different from other IEEE 802 standards. • One unique solution per problem (not two solutions to a problem). • Easy for the document reader to select the relevant specification. • Technical Feasibility • Demonstrated system feasibility. • Proven technology, reasonable testing. • Confidence in reliability. • Coexistence of 802 wireless standards specifying devices for unlicensed operation • Economic Feasibility • Known cost factors, reliable data. • Reasonable cost for performance. • Consideration of installation costs. David Halasz, Aclara

  8. References • Policies and Procedures of IEEE project 802, LAN MAN Standards Committee (LMSC) http://ieee802.org/policies-and-procedures.pdf David Halasz, Aclara

More Related