Abstract
This paper considers an increase in the achievable rate of beamforming systems in two-way communication, resulting from bi-directional use of the spatial resources. The concept of bi-directional use of the spatial resources is first introduced. Then, a condition is derived under which bi-directional beamforming (BB) has larger achievable rate than that of conventional beamforming operating via frequency division duplexing (UB-FDD). In addition, the variation in the achievable rate of bi-directional beamforming is investigated when echo interference is pre-cancelled in the air. Simulation results show that the achievable rate of BB is always larger when the echo is ideally eliminated, and is larger over a certain level of SNR and below a certain level of fading correlation than that of UB-FDD.
Original language | English (US) |
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Title of host publication | 2011 IEEE Global Telecommunications Conference, GLOBECOM 2011 |
DOIs | |
State | Published - Dec 1 2011 |
Event | 54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011 - Houston, TX, United States Duration: Dec 5 2011 → Dec 9 2011 |
Other
Other | 54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011 |
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Country/Territory | United States |
City | Houston, TX |
Period | 12/5/11 → 12/9/11 |
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering