Abstract
Any around-the-body wireless system faces challenging requirements. This is especially true in the case of audio streaming around the head e.g. for wireless audio headsets or hearing-aid devices. The behind-the-ear device typically serves multiple radio links e.g. ear-to-ear, ear-to-pocket (a phone or MP3 player) or even a link between the ear and a remote base station such as a TV. Good audio quality is a prerequisite and mW-range power consumption is compulsory in view of battery size. However, the GHz communication channel typically shows a significant attenuation; for an ear-to-ear link, the attenuation due to the narrowband fade dominates and is in the order of 55 to 65dB [1]. The typically small antennas, close to the human body, add another 10 to 15dB of losses. For the ear-to-pocket and the ear-to-remote link, the losses due to body proximity and antenna size reduce, however the distance increases resulting in a similar link budget requirement of 80dB.
Original language | English |
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Title of host publication | 2012 IEEE International Solid-State Circuits Conference, ISSCC 2012 - Digest of Technical Papers |
Pages | 450-451 |
Number of pages | 2 |
DOIs | |
Publication status | Published - 2012 |
Event | 59th IEEE International Solid-State Circuits Conference, ISSCC 2012 - San Francisco, United States Duration: 19 Feb 2012 → 23 Feb 2012 Conference number: 59 |
Conference
Conference | 59th IEEE International Solid-State Circuits Conference, ISSCC 2012 |
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Abbreviated title | ISSCC 2012 |
Country/Territory | United States |
City | San Francisco |
Period | 19/02/12 → 23/02/12 |
Other | “Silicon Systems for Sustainability” |