900 MHz ISM Band

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					January 2010                                          doc.: IEEE 802.11-09/1311r1


                        900 MHz ISM Band
                               Date: 2009-12-15
Authors:
Name           Affiliations   Address             Phone          email
David Halasz   Aclara         30400 Solon Rd      440-528-7477   dhalasz@aclara.com
                              Solon, OH 44139




Submission                              Slide 1                             David Halasz, Aclara
January 2010                         doc.: IEEE 802.11-09/1311r1


                       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.




Submission                 Slide 2                  David Halasz, Aclara
January 2010                                         doc.: IEEE 802.11-09/1311r1


        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
Submission                              Slide 3                      David Halasz, Aclara
January 2010                  doc.: IEEE 802.11-09/1311r1


  SmartGrid has a large outdoor component


                              • Use IEEE 802.11!

                              • Select band and channel
                              width to meet the usage needs.




Submission          Slide 4                  David Halasz, Aclara
January 2010                          doc.: IEEE 802.11-09/1311r1

     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.



Submission             Slide 5                       David Halasz, Aclara
January 2010                               doc.: IEEE 802.11-09/1311r1


                  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.




Submission                      Slide 6                   David Halasz, Aclara
January 2010                                                                    doc.: IEEE 802.11-09/1311r1


                                       PAR & 5 criteria
 • Criteria from 802 Policy and procedures
      1.          Broad Market Potential
             1.      Broad sets of applicability.
             2.      Multiple vendors and numerous users.
             3.      Balanced costs (LAN versus attached stations).

      2.          Compatibility
      3.          Distinct Identity
             1.      Substantially different from other IEEE 802 standards.
             2.      One unique solution per problem (not two solutions to a problem).
             3.      Easy for the document reader to select the relevant specification.

      4.          Technical Feasibility
             1.      Demonstrated system feasibility.
             2.      Proven technology, reasonable testing.
             3.      Confidence in reliability.
             4.      Coexistence of 802 wireless standards specifying devices for unlicensed operation

      5.          Economic Feasibility
             1.      Known cost factors, reliable data.
             2.      Reasonable cost for performance.
             3.      Consideration of installation costs.
Submission                                                  Slide 7                                      David Halasz, Aclara
January 2010                         doc.: IEEE 802.11-09/1311r1


                     References

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




Submission                 Slide 8                  David Halasz, Aclara