Method and equipment for data transmission by ad-hoc network
AssigneeEastman Kodak Company
InventorsNicolas P. Touchard, Eric Masera, Thierry Lebihen, Santie V. Adelbert
Life of this patent
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Abstract
The invention relates to a method of data transmission by an ad-hoc network of mobile communication equipment (16a, 16b, 16c, 16d), from at least one source equipment (12) to at least one collection terminal (14), by means of mobile relay equipment (16c), in which for each communication equipment, at least one quality factor is updated (Q0, Q1, Q2 Q3, Q4, Q5). According to the invention, the quality factor of each relay equipment depends on a history of data transmission, and data transmission from mobile equipment to mobile relay equipment is conditional on the quality factor of the relay equipment capable of receiving the data.
Claims13
Method of data transmission comprising:
- a mobile sending device searching for relay equipment and receiving devices in a field of local radio coverage;
- collecting quality factors associated with the relay equipment and the receiving devices responding to the searching;
- transmitting data from the mobile sending device to at least one receiving device via relay equipment;
- updating at least one quality factor associated with the the receiving devices and the relay equipment, the quality factor being based upon a history of data transmission;
- and
- transmitting data from the mobile sending device to a receiving device via relay equipment, wherein the data transmission from the mobile sending device to the relay equipment is conditioned based on the quality factors associated with the relay equipment capable of receiving the data, such that the data is preferentially transferred to the relay equipment in a decreasing order of the quality factors associated with the relay equipment, or such that the data is transfered to at least one relay equipment having a higher quality factor than a threshold quality factor and having a quality factor higher than a quality factor associated with the sending device.
A method of transmission of data from at least one source equipment to at least one collection terminal, wherein the data is transmitted via mobile communication relay equipment in an ad-hoc network, the mobile communication relay equipment adapted to be carried by users who can physically move, the mobile communication relay equipment having a memory in which the data is temporarily stored until transmission of the data to a next mobile communication relay equipment or a collection terminal, wherein each mobile communication relay equipment has an associated quality factor determined based on a transmission history of past data transmissions, and wherein the quality factor is respectively decreased upon reception of data to be transmitted by the mobile communication relay equipment and the quality factor is respectively increased upon transmission of the data to be transmitted by the mobile communication relay equipment to the next mobile communication relay equipment or the collection terminal, and wherein the transmission of the data to the next mobile communication relay equipment is conditional on the quality factor of the said next mobile communication relay equipment.
Dependencies are inferred from the claim text.