Sneak peek at cellphone future.
NTT DoCoMo Inc., Japan's largest mobile phone company, has successfully transmitted 2.5 Gb/s of packet data in a downlink to a vehicle moving at 20 km/hr. DoCoMo owed its success to using bandwidth more efficiently and partly to bumping up two key technologies: multiple-input, multiple-output (...
| Опубликовано в:: | IEEE spectrum 43, 6 (2006). |
|---|---|
| Главный автор: | |
| Формат: | Статья |
| Язык: | English |
| Предметы: |