power bandwidth limitation

Such limitations include computation ability, memory capability, power limitation and communication bandwidth and range. Many emerging wireless applications for emergency and military situations depend upon secure group communications. But group key management in sensor networks faces a great challenge because of the resource-limited.

然而由于传感器网络中节点的计算能力、内存容量、电能限制以及网络的带宽、无线传输能力等等的限制，使得传感器网络的组密钥管理面临巨大的挑战。

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