多功能個人/團體通訊系統

Abstract

傳統的通訊系統以一組數字或一個帳號來代表一個通訊點，例如手機系統的識別元是手機號碼，然而這樣的識別元並無意義，無法和通訊點聯想。我們提出一個新的通訊系統，除了支援原本的單一、特定識別元也支援多屬性識別元，讓發訊者在尋找通訊目標時，即使不知道對方的特定識別元，也可透過輸入”姓名”，”地址”，”年紀”，”就讀學校”，等屬性，來找到對方。 依屬性設定不同，此系統可以提供多種通訊服務。例如，廣告商可以將廣告發送給在”喜好”屬性中設定符合商品特性的使用者，或是團體成員也可以約定設定相同屬性，就可以讓所有成員看到團體訊息。我們提供簡訊通訊功能和語音通訊功能供使用者使用，語音通訊部分目前只支援一對一談話。 在系統設計部分，我們提出以結構化點對點(P2P)網路為基礎的解決方案，我們也整合、修改現有研究，分別提出字串、數字、混種型態屬性值的散布和查詢方式。此外，為解決通訊點加入、離開系統造成連結錯誤或儲存的資料遺失的問題，我們也提出相關解決方案。

Traditional communication system uses a specific ID, such as a cell phone number or an SIP account, to specify a communication node. Such a specific ID contains little information that we can associate with the communication node. We propose a multi-function personal/group communication system (MFPGC system) supporting both traditional specific IDs and multiple unspecific attributes. A user can find a callee by unspecific, but meaningful attributes such as “Name”, “Address”, “Age”, and “University” in this system. MFPGC system can support various communication scenarios by different attribute settings. For example, an advertiser can publish advertisement to users with suitable “interest”, “preference”, or “habits” attributes. A group of members can also define several attributes with the same values and thus a member can send messages to all other members without knowing others’ specific IDs. In our implementation, we provide one-to-one and one-to-many text message (like an instant message in cell phone system) communication and one-to-one voice communication functionality. In our system design, we propose a structured P2P based solution. We integrate and enhance existing solutions for string type attributes, numerical type attributes, and hybrid type attributes publish/query. Furthermore, to solve problems caused by the dynamic user behavior of joining/leaving the system, we propose a data duplication solution.