Relay Assisted Cooperative OSTBC Communication with SNR Imbalance and Channel Estimation Errors
| Autor: | Mihaela C. Beluri, Zinan Lin, Prabhakar R. Chitrapu, Bo Niu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Block code
FOS: Computer and information sciences Computer science business.industry Information Theory (cs.IT) Computer Science - Information Theory ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Data_CODINGANDINFORMATIONTHEORY Antenna diversity law.invention Relay law Telecommunications link Electronic engineering Computer Science::Networking and Internet Architecture Fading Telecommunications business Relay channel Communication channel Computer Science::Information Theory |
| Zdroj: | VTC Spring |
| Popis: | In this paper, a two-hop relay assisted cooperative Orthogonal Space-Time Block Codes (OSTBC) transmission scheme is considered for the downlink communication of a cellular system, where the base station (BS) and the relay station (RS) cooperate and transmit data to the user equipment (UE) in a distributed fashion. We analyze the impact of the SNR imbalance between the BS-UE and RS-UE links, as well as the imperfect channel estimation at the UE receiver. The performance is analyzed in the presence of Rayleigh flat fading and our results show that the SNR imbalance does not impact the spatial diversity order. On the other hand, channel estimation errors have a larger impact on the system performance. Simulation results are then provided to confirm the analysis. 5 pages, 3 figures, IEEE 69th Vehicular Technology Conference |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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