on positive train control leveraged into advanced railroad wireless, and arw spectrum

8/13/2019 On Positive Train Control leveraged into Advanced Railroad Wireless, and ARW spectrum

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1. Jamming : Far less likely to be jammed. See [1] below. Easy to cheaply get high power Amateur radios on lower200 MHz, retune, and jam PTC on 220 MHz range channels. Much harder for anyone to get sophisticated wider-band radios capable of jamming all of the multiple bands and modes of AWR.

2. Interference : Far more robust to interference. See [1] below and papers on wideband OFDM LTE, etc.

3. Spoofing and interception : Far more resistant. See [1] below.

4. Points and probability of failure : Far superior. PTC will have far less back up, if a base station or several in anarea fail in mobile coverage and base-to-network links. See also [1] below.

5. Coverage redundancy : Far superior in range, overlaps, etc. See also [1] below.

6. Economic stress : Far less, since AWR is far more cost effective, and has far more economic value and futureviability, better tech and equipment supplies and future, etc. See also [1] below.

--------[1] AWR (Advanced Railroad Wireless) as described herein. It includes: (1) The described multiple bands, ( 2) OFDM subcarriers in each,and ( 3) where critical traffic uses all or many of these, so that if one band and some carriers are subject to jamming, interference, spoofing orcorruption, failure, etc., the others will not or be less likely to suffer the same, in same times and places. ( 4) Also, ARW will have order(s) ofmagnitude more capacity and uses, justifying more base stations, and more coverage redundancy, and ( 5) will have highly secure one-waybroadcast antenna stations, with coverage that will be hard to compromise and afford additional redundancy (for network to mobile traffic).(6) It will also support secure radio-to-radio mesh nets that will provide an additional robustness mode for mission-critical data (where ifmany nodes fail, the others still operate to complete connections). ( 7) If Meteor burst communications (MBC) is also used for some of our35-43 MHz spectrum, this adds major additional security for reasons covered in MBC radio literature (super wide area coverage, hard to

intercept, very easy to secure base stations, allows nanocencond timing and MBC-generated cryptography that can add to security, etc.MBC and terrestrial can be combined.

[2] PTC as planned by US public railroads: ( 1) narrow 220 MHz range channels; ( 2) only one or several channels per fixed base station; ( 3)substantial radio-service overlap (always 2 serving base stations), and ( 4) assuming hot-standby of radios at each based station, ( 5)cryptography of the essential data, ( 6) mission-critical grade radios and other components, ( 7) good physical security of the system, ( 8) goodsystem maintenance, etc. ( AWR will have 4-8, and vast improvements in 1-3, and other security benefits.)-----* By “security” we mean all aspects of the wireless systems that contribute to successful radio communications without any failures andcompromises at any place and any time, and being able to verify that success.

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SkyTel FCC licensed spectrum, and other bands available for ARW – location in radio spectrum ranges

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( A deployment architecture using this spectrum is depicted 4 slides below. )

* Additional N-LMS spectrum, up to 14 MHz additional, can be used with the M-LMS for Intelligent Transport System (ITS) andsynergistic applications. N-LMS uses relatively low-height base stations. M-LMS can use any antenna height. The two can becombined for ITS and related applications. We depict this in a slide below.

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on positive train control leveraged into advanced railroad wireless, and arw spectrum

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