System and method of cooperative and opportunistic relaying of transmissions requiring relay coordination
AssigneeAselsan Elektronik Sanayi Ve Ticaret Anonim Sirketi
InventorsFuruzan Atay Onat, Guven Yenihayat, Ahmet Ertugrul Kolagasioglu
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Abstract
The present invention relates to a cooperative relaying system (1) and method (100) in which many different units in the network can be used in a common channel and time interval by way of repetition without requiring additional relay coordination in cases where the connection between the source and the destination is insufficient in wireless communication networks. The inventive system (1) and method (100) increases the probability of the transmission of the source data with the maximum diversity gain requiring no coordination thanks to determining the relays (3) without pre-selection and keeping the amount of band spent to a minimum.
Claims10
A method for enabling a transmission to be relayed in a common channel and time interval and for processing an incoming signal, the method comprising:
- detecting a broadcast coming from a source;
- deciding whether a relaying action is necessary or not;
- remaining silent if the relaying action is not necessary;
- checking whether the condition of being a relay is met or not based on a parameter indicating the quality of a transmission that the relay received from the source;
- remaining silent if the condition of being the relay is not met;
- deciding for the relaying method if the condition of being the relay is met;
- performing repetition in a common channel by a plurality of relays;
- and
- processing of signals with a suggested receiver structure in a destination receiver;
- wherein processing of signals with the suggested receiver structure step is performed in the destination receiver;
- and wherein detecting, deciding, remaining silent, checking, deciding and performing repetition steps are performed in the relay.
A system for enabling a broadcast to be relayed in a common channel and time interval, and for processing a plurality of incoming signals at a destination, without requiring relay coordination;
- comprising a source which transmits a transmission signal;
- at least one relay which transmits the transmission signal that the relay receives from the source in a common channel and time interval;
- and
- at least one destination which processes the signals that the destination receives from the relays;
- a receiver which does not require the inter symbol interference channel formed at the destination to be known in advance by the receiver and processes the signals coming from the relays using blind channel estimation wherein Generalized Viterbi Algorithm (GVA) is employed.
Dependencies are inferred from the claim text.