Research on energy-efficient data transmission technology for wireless sensor networks 并列题名：Research on energy-efficient data transmission technology for wireless sensor networks Scheduling optimization technology for wireless sensor networks 并列题名：Scheduling optimization technology for wireless sensor networks Research on architecture design and transmission optimization for wireless data center network Research on key techniques of data reliable transmission in wireless sensor network Routing and topology control technology for wireless sensor networks 并列题名：Research on architecture design and transmission optimization for wireless data center network Field applications and design technologies of wireless sensor networks Test and measurement technologies for wireless sensor network