Collision Recovery for OFDM System over Wireless Channel

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概要

• 論文の詳細を見る

• We present an effective method of collision recovery for orthogonal frequency division multiplexing (OFDM)-based communications. For the OFDM system, the modulated message data can be demodulated using the partial time-domain OFDM signal. Therefore, the partial time-domain signal can be adopted to reconstruct the whole OFDM time-domain signal with estimated channel information. This property can be utilized to recover packets from the collisions. Since most collisions are cases in which a long packet collides with a short packet, the collided part is assumed to be short. The simulated results show that the method can recover the two collided packets with a certain probability and can be developed to solve the problem of hidden terminals. This method will dramatically benefit the protocol design of wireless networks, including ad hoc and sensor networks.

• 社団法人電子情報通信学会の論文
• 2007-07-01

著者

• Hou Yafei

  Graduate School Of Engineering Kochi University Of Technology

• HAMAMURA Masanori

  Dept. of Information Systems Engineering, Kochi University of Technology

• Hamamura Masanori

  Dept. Of Information Systems Engineering Kochi University Of Technology

関連論文

• Collision Recovery for OFDM System over Wireless Channel
• A Novel Modulation with Parallel Combinatory and High Compaction Multi-Carrier Modulation

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