地上デジタルテレビジョン放送ワンセグサービスの協調受信に関する一検討

抄録

A scheme for cooperative reception of ISDB-T one-segment service is proposed and its performance is analyzed. It is very difficult to install multiple antennas for diversity reception in small mobile one-segment terminals, and therefore efficient diversity is not always achieved. Cooperative reception between multiple receivers via a dedicated communication network such as Bluetooth is one method of overcoming this problem. Since the communication-link capacity between terminals is limited, a scheme for the efficient exchange of required information such as channel information and sub-carrier data between terminals for diversity must be developed. We discuss possible schemes to reduce the information exchanged between terminals and to achieve maximum diversity performance. Analysis demonstrated the possibility of the proposed scheme for use in a cooperative reception of ISDB-T one-segment service.