Efficient Use Of Narrowband Radio Channels For Mobile Digital Communications
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

For very narrow results

When looking for a specific result

Best used for discovery & interchangable words

Recommended to be used in conjunction with other fields

Dates

to

Document Data
Library
People
Clear All
Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Efficient Use Of Narrowband Radio Channels For Mobile Digital Communications

Filetype[PDF-1.17 MB]


English
Details You May Also Like

Details:

  • Alternative Title:
    IDEA PROJECT FINAL REPORT, EFFICIENT USE OF NARROWBAND RADIO CHANNELS FOR MOBILE DIGITAL COMMUNICATIONS
  • Creators:
    Fitz, Michael P.
  • Subject/TRT Terms:
  • Resource Type:
    Research Paper
  • TRIS Online Accession Number:
    00727278
  • Corporate Publisher:
    United States. Federal Highway Administration
  • NTL Classification:
    NTL-INTELLIGENT TRANSPORTATION SYSTEMS-INTELLIGENT TRANSPORTATION SYSTEMS
  • Abstract:
    Data communications systems linking field equipment such as traffic sensors, changeable message signs and incident response vehicles with traffic operations centers are a fundamental requirement of Federal Highway Administration (FHWA) plans for deployment of Intelligent Transportation System (ITS) traffic management and traveler information services. The FHWA has received an allocation of five channels in the 220 MHz band to provide a communications resource for ITS applications. High efficiency modems will be required to make maximum beneficial use of the ITS 220 MHz channels. This Innovations Deserving Exploratory Analysis (IDEA) project developed a wireless modem architecture that provides bandwidth efficient data communications in the 220 MHz ITS spectral allocations. The goal was to provide greater than 12 kbps transmission capacity on the 4 kHz channels (3 bps/Hz spectral efficiency) for mobile applications. This work has resulted in a proof of concept of a general purpose resource for data communications in traffic management systems, traveler information systems, and/or commercial vehicle operations. The system was verified by a rigorous theoretical performance analysis, bench testing and indoor field testing. Field tests in mobile urban environments are planned. 23 p.
  • Format:
    PDF
  • Collection(s):
  • Main Document Checksum:
  • Download URL:
  • File Type:

Supporting Files

  • No Additional Files
More +

You May Also Like

Checkout today's featured content at rosap.ntl.bts.gov