Spreading Sequence Design for Partial Connectivity Relay Network

This paper considers a downlink relay network where source communicates with the receivers through relays under frequency-selective fading channels. A spreading sequence design scheme, which is subjected to maximizing the signal-to-interference- plus-noise ratio (SINR) is proposed. It is shown through simulations that a better bit error rate (BER) can be achieved using this proposed scheme. The sensitivity of the proposed scheme to channel uncertainty and broadband noise jamming is also examined.