IEEE transactions on wireless communications, 2009-02, Vol.8 (2), p.633-637
2009
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- Autor(en) / Beteiligte
- Titel
- Effect of multiple antennas at the source on outage probability for amplify-and-forward relaying systems
- Ist Teil von
- IEEE transactions on wireless communications, 2009-02, Vol.8 (2), p.633-637
- Ort / Verlag
- New York, NY: IEEE
- Erscheinungsjahr
- 2009
- Quelle
- IEEE Electronic Library Online
- Beschreibungen/Notizen
- The amplify-and-forward (AF) relaying system considered here consists of a source node with M transmit antennas, and relay and destination nodes with a single antenna each. The closed-form expressions for the outage probabilities for maximum-ratio-transmission (MRT) at the source are presented for some specific values of M. Numerical results show that increasing M from 1 to 2 can achieve roughly a 3 dB SNR gain, guaranteeing the same outage probability. However, we discover that for M ges 3, the additional gain compared to M = 2 decreases quickly as the SNR increases. Therefore, increasing M above 3 does not achieve significantly greater gain over M = 2 at high SNR.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1536-1276eISSN: 1558-2248DOI: 10.1109/TWC.2009.071332Titel-ID: cdi_ieee_primary_4786420
- Format
- –
- Schlagworte
- Amplification, Amplify-and-forward (AF) relaying, Antenna theory, Antennas, Applied sciences, Closed-form solution, Decoding, Digital relays, Exact sciences and technology, Gain, Information technology, Mathematical analysis, maximum-ratio-transmission (MRT), MIMO, Mobile antennas, Noise levels, outage probability, Outages, Power system relaying, Radiocommunications, Relaying, Space time codes, Telecommunications, Telecommunications and information theory, Transmitting antennas, Wireless communication