Abstract: Aspects of the disclosure are directed to a communications environment involving a plurality of remote transmitters that communicate over respective subchannels. As may be implemented in accordance with one or more embodiments, energy characteristics of wireless transmissions received from one of the remote transmitters and a location that remote transmitter are respectively ascertained, for each of such subchannels. One of the subchannels is selected based on the ascertained energy characteristics and locations of the remote transmitters, and data is generated for transmission over the selected one of the subchannels.

Abstract: Aspects of the disclosure are directed to a communications environment involving a plurality of remote transmitters that communicate over respective subchannels. As may be implemented in accordance with one or more embodiments, energy characteristics of wireless transmissions received from one of the remote transmitters and a location that remote transmitter are respectively ascertained, for each of such subchannels. One of the subchannels is selected based on the ascertained energy characteristics and locations of the remote transmitters, and data is generated for transmission over the selected one of the subchannels.

Abstract: An intelligent transportation system (ITS) station (400) for a vehicle (200) is described. The ITS station (400) includes a packet count and vehicle count estimator (342) arranged to receive broadcast ITS transmissions from a plurality of neighbouring vehicles and provide an indication of a number of the plurality of vehicles and a number of packets received from the plurality of neighbouring vehicles; and a fair resource allocator circuit (410) operably coupled to the packet count and vehicle count estimator (342) and configured to adjust a broadcast message rate and a modulation data rate of an ITS transmission in a cooperative manner based on application reliability requirements, the number of the plurality of vehicles and the indication of the number of received packets; and a transmitter operably coupled to the fair resource allocator circuit (410) and configured to broadcast at least one ITS message using the adjusted broadcast message rate and adjusted modulation data rate.

Abstract: An intelligent transportation system (ITS) station (400) for a vehicle (200) is described. The ITS station (400) includes a packet count and vehicle count estimator (342) arranged to receive broadcast ITS transmissions from a plurality of neighbouring vehicles and provide an indication of a number of the plurality of vehicles and a number of packets received from the plurality of neighbouring vehicles; and a fair resource allocator circuit (410) operably coupled to the packet count and vehicle count estimator (342) and configured to adjust a broadcast message rate and a modulation data rate of an ITS transmission in a cooperative manner based on application reliability requirements, the number of the plurality of vehicles and the indication of the number of received packets; and a transmitter operably coupled to the fair resource allocator circuit (410) and configured to broadcast at least one ITS message using the adjusted broadcast message rate and adjusted modulation data rate.