Each relay plays the role of one antenna in the conventional Alamouti diversity, [20], so each relay creates a different sequence.
The relay plays a vital role in the code construction at the destination and a good code design at the relay can greatly improve the overall performance of the coded-cooperative scheme.
A similar problem was studied in [27], although there the relay plays no significant role in the design as its amplification is not performed per subcarrier as it is here.
With different names and characteristics, relays play a crucial role in the design of transportation and telecommunication networks.
In practice, modern digital relays play a vital role for handling faults by allowing different switching configurations of opening and closing the circuit breakers in power networks.
This load encroachment of impedance relays played a role in recent blackouts [7, 8] and arises because the relay setting is a compromise between the desired setting level and the maximum anticipated load at the relay locations.
Practical situations where such assumption could apply: (1) users are close, such as they are within the range of WLAN, Bluetooth, and so forth, (2) for eNB to Relay communications where the relays play the role of users; Relays could be assumed to be deployed as a kind of meshed sub-network and therefore able to cooperate in receiving over the downlink MIMO channel.
At Yankee Stadium, he preserved what became an extra-inning victory with a skidding stop of a hit to begin a relay play that cut down what would have been the winning run at the plate.
Films of the 1953 championship at Briggs Stadium in Detroit show guard Chuck Noll, who later coached the Steelers, who shuttled in and out to relay plays to the huddle from Browns Coach Paul Brown.
The coaches on the sideline could talk to the coaches calling the plays in the press box, but the coaches on the sideline -- primarily the assistant head coach Maurice Carthon and the tight ends coach Ken Whisenhunt -- had to use hand signals to relay plays to Testaverde.
